With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Dumb and Dumber features a Canadian-American actor born in 1962 in a lead role.
text_B: Sport + may refer to  :. Sport + -LRB- France -RRB- , a cable and satellite television channel owned by Canal +. Sport + -LRB- Greece -RRB- , a digital terrestrial television station owned by ERT
not_related.