With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Boston Celtics share an arena with a racoon.
text_B: Robert Halsall Abel -LRB- born May 27 , 1941 in Painesville , Ohio -RRB- is an American short story writer , and novelist .. short story. short story. novelist. novelist
not_related.