SYNTHETIC TEST POLICY ONLY
Exact equal identifier tokens plus consistent relationships produce a possible duplicate for review. They never prove identity.
SYNTH-HOUSEHOLD is a shared number token for distinct people C3/C4. Keep separate.
Staff-nominated pair C5/C6 has a reported similarity outside the supplied CSV. Their conflicting matter roles prohibit automatic merging. The report must not invent names or confirm identity.
Backup scope: these two synthetic CSVs only. No live repair is authorized.