# Relation Contract — Trading Literature

Each generated relation must be a Markdown artifact with:

- one top-level heading containing the relation title
- `## Subject`
- `## Predicate`
- `## Object`
- `## Relation Type` — exactly one of: `cause_effect`, `lesson_evidence`,
  `risk_mitigation`, `actor_venue`, `strategy_outcome`
- optional `## Evidence` and `## Feedback Role`

Subject and object values should match generated entity titles whenever
possible. A relation whose subject or object does not correspond to any
extracted entity must include an `## Evidence` section that quotes the
phrase from the source supporting the link.