With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The gray wolf was always unable to colonize North America.
text_B: Dreams of Glass is a 1970 film directed by Robert Clouse .. Robert Clouse. Robert Clouse. It stars John Denos and Caroline Barrett .. John Denos. John Denos. Caroline Barrett. Caroline Barrett. It was Danny DeVito 's first film appearance .. Danny DeVito. Danny DeVito
not_related.