With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Greenpeace is from the U.K.
text_B: NOTOC. T-cell acute lymphocytic leukemia protein 1 is a protein that in humans is encoded by the TAL1 gene .. protein. protein. gene. gene. The protein encoded by TAL1 is a basic helix-loop-helix transcription factor .. protein. protein. basic helix-loop-helix. basic helix-loop-helix. transcription factor. transcription factor
not_related.