With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Batman Begins is in The Dark Knight Trilogy.
text_B: Zachary Brooke -LRB- 1716 -- 1788 -RRB- was an English clergyman and academic , Lady Margaret 's Professor of Divinity at the University of Cambridge .. University of Cambridge. University of Cambridge
not_related.