With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Syd Barrett danced in 2006.
text_B: Mecyclothorax sapei is a species of ground beetle in the subfamily Psydrinae .. ground beetle. ground beetle. Psydrinae. Psydrinae. It was described by Baehr in 1995 .
not_related.