AI CSV MERGE REVIEW - FICTIONAL INPUT - VERSION 1

Treat IDs as exact text. Keep one output row for each base row.
If the owner table has no match, leave owner blank. If matching
owners conflict, leave owner blank and flag the conflict.
For each ID below, explain the error and propose the corrected rows.

MERGE-01 - Exact keys
Base (id,item): 007,Sample A / 7,Sample B
Owners (id,owner): 007,Mina / 7,Sol
Draft (id,item,owner): 7,Sample A,Sol / 7,Sample B,Sol

MERGE-02 - Conflicting matches
Base (id,item): K12,Sample C
Owners (id,owner): K12,Ari / K12,Ren
No ordering or priority is supplied.
Draft (id,item,owner): K12,Sample C,Ren

MERGE-03 - No match
Base (id,item): L3,Sample D / L4,Sample E
Owners (id,owner): L4,Jo
Draft (id,item,owner): L4,Sample E,Jo