With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Cristiano Ronaldo is a professional footballer for Spanish club Real Madrid.
text_B: Southbourne is an electoral ward of Chichester District , West Sussex , England and returns three members to sit on Chichester District Council .. Chichester. Chichester ( UK Parliament constituency ). West Sussex. West Sussex. electoral ward. electoral ward. Chichester District. Chichester ( district ). England. England
not_related.