With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: There is a film called Passengers.
text_B: Brevican core protein is a protein that in humans is encoded by the BCAN gene .. protein. protein. gene. gene. Brevican is a member of the lectican protein family .. protein. protein. lectican. lectican. Brevican is localised to the surface of neurons in the brain .. brain. brain. In melanocytic cells , BCAN gene expression may be regulated by MITF .. gene. gene. MITF. Microphthalmia-associated transcription factor
not_related.