With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: In 1981, Mel Gibson played a lead role in the World War I drama Gallipoli.
text_B: Rachel Wilson -LRB- born May 12 , 1977 -RRB- is a Canadian actress who is best known for her role as Heather on Total Drama and Tamira Goldstein on Breaker High .. Total Drama. Total Drama. Breaker High. Breaker High
not_related.