With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Bradford contains Bradford County Park.
text_B: Johan Antoon Reinier Alex Maria `` Jan '' van Hooff -LRB- born 15 May 1936 -RRB- is a Dutch biologist .. He was professor of comparative physiology at Utrecht University from 1980 to 2001 .. comparative physiology. comparative physiology. Utrecht University. Utrecht University. He is best known for his research involving primates .
not_related.