status	occasion	approved_achievements	pieces_each	total	source_owner
ILLUSTRATIVE	Grading milestone	18	1	18	authorized instructor
ILLUSTRATIVE	Tournament result	12	1	12	event administrator
ILLUSTRATIVE NOTE	Four students occur in both groups	0	0	0	two distinct achievements each
INSTRUCTION	Do not deduplicate different occasions by name alone	0	0	0	verify item-to-achievement mapping