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# CORPUS-0008
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## Material Redirection: Timber
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### Status: Training Corpus Seed
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### Layer: Layer_1--Worked_Examples
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### Purpose: Teach that a material may gain or lose value when redirected from one use to another
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### Repository Path: docs/training/corpus/Layer_1--Worked_Examples/CORPUS-0008-material-redirection-timber.md
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---
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## 0. Scenario
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A trader in Ostia learns that a stack of timber was originally priced for ordinary building work.
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A new need appears: cart repairs in Capua require straight, dry boards.
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The timber has not changed physically.
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Its possible use has changed.
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The trader must decide whether the timber is still only construction material, or whether its higher-value use changes the opportunity.
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---
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## 1. Known Facts
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| Fact | Value |
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|---|---|
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| Location of timber | Ostia |
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| Original intended use | ordinary construction |
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| New possible use | cart repair stock in Capua |
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| Timber condition | dry, straight boards |
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| Original local value | 30 asses |
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| Expected Capua repair-use value | 48 asses |
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| Movement and handling cost | 10 asses |
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Expected result if redirected:
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```text
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sale value: 48 asses
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total cost: 30 + 10 = 40 asses
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expected profit: 8 asses
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```
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The profit comes from changed use, not changed material.
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---
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## 2. First Incorrect Interpretation
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A weak model may reason:
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> The timber is construction timber, so it should be valued only as construction timber.
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This misses the opportunity.
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The trader must ask what the timber can become under current conditions.
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---
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## 3. Use-Value Comparison
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| Use | Value | Notes |
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|---|---:|---|
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| local construction | 30 asses | ordinary use |
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| cart repair stock in Capua | 48 asses | higher urgency |
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| fuel | lower | poor use for good boards |
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| storage for later | uncertain | ties up capital |
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The same physical material has different values depending on use.
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---
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## 4. Cost And Transformation Questions
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The trader must ask:
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- is the timber dry enough?
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- is it straight enough?
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- can it fit cart repair needs?
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- who can cut or shape it?
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- does transformation require extra cost?
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- will Capua buyers pay for boards or finished parts?
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- does transport damage reduce value?
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- will a rival buy it first?
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The higher-value use exists only if the material actually fits the need.
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---
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## 5. Variant A — Timber Fits Repair Need
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The boards are dry and suitable.
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```text
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sale value = 48 asses
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total cost = 40 asses
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result = 8 asses profit
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```
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The redirection succeeds.
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---
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## 6. Variant B — Timber Needs Extra Shaping
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A craftsman must shape the boards before sale.
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Additional cost: 6 asses.
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```text
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sale value = 48 asses
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total cost = 46 asses
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result = 2 asses profit
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```
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The opportunity remains, but the margin is narrow.
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---
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## 7. Variant C — Timber Misjudged
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The boards are not suitable for cart repair.
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They sell only as ordinary timber in Capua for 34 asses.
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```text
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sale value = 34 asses
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total cost = 40 asses
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result = 6 asses loss
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```
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The trader misread possible use.
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---
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## 8. Correct Model Behavior
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The model should reason:
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- material value depends on possible use
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- original intended use does not fix final value
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- higher-value use may require quality, skill, and timing
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- transformation cost must be counted
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- misjudging suitability can create loss
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- redirection is an opportunity only when the material fits the new need
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---
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## 9. Incorrect Model Behavior
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The model should not:
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- treat timber as having one fixed value
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- assume all timber fits every use
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- ignore quality differences
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- ignore shaping or preparation cost
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- ignore transport cost
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- assume emergency demand guarantees profit
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- confuse possible value with certain sale value
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---
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## 10. Layer-0 Concepts Used
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This example uses:
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- `CORPUS-0002-goods-have-local-prices`
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- `CORPUS-0004-cost-includes-more-than-purchase-price`
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- `CORPUS-0005-profit-is-sale-minus-total-cost`
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- `CORPUS-0012-every-venture-risks-loss`
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- `CORPUS-0015-materials-can-change-value-through-use`
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- `CORPUS-0018-rivalry-changes-conditions`
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---
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## 11. Success Condition
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If the model sees timber and asks not only what it is, but what it can become, what that transformation costs, and whether the material fits the higher-value use, this file is functioning correctly.
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