With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Role-playing games can be conducted through character acting.
text_B: Colonel Richard Grace -LRB- c. 1612 -- 1691 -RRB- was an Irish Royalist soldier who fought for Charles I , Charles II and James II .. Charles I. Charles I of England. Charles II. Charles II of England. James II. James II of England
not_related.