With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tim Allen ended his role on a sitcom in 2017.
text_B: Eudendrium exiguum is a marine species of cnidaria , a hydroid -LRB- Hydrozoa -RRB- in the family Eudendriidae .. Hydrozoa. Hydrozoa. Eudendriidae. Eudendriidae. Eudendrium. Eudendrium. species. species. cnidaria. cnidaria
not_related.