FA-100067 / Preference pair construction / Member archive
Preference pairs: parallel candidate arrays drift out of alignment · case 02
parallel candidate arrays drift out of alignment.
Case contract
Chosen and rejected rows are [pair_id,response]. Return [pair_id,chosen,rejected] for shared IDs in chosen input order.
Why this case matters
A small deterministic preference-data transform makes pair semantics inspectable without a training framework.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| reordered keys | [["p2", "yes", "down"], ["q2", "up", "no"]] | [["p2", "yes", "no"], ["q2", "up", "down"]] | Failed |
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