With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Karl Urban played a character.
text_B: The Buffalo Bulls softball team represents the University at Buffalo in NCAA Division I college softball .. Bulls. Buffalo Bulls. University at Buffalo. University at Buffalo, The State University of New York. NCAA Division I. NCAA Division I. college softball. college softball. The team participates in the East Division of the Mid-American Conference -LRB- MAC -RRB- .. Mid-American Conference. Mid-American Conference. The team plays its home games at Nan Harvey Field located on the university 's campus .
not_related.