With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Demi Lovato is an advocate for animal rights.
text_B: Fabrizio Gabriele -LRB- born 11 May 1985 in Naples -RRB- is an Italian rower .. Naples. Naples. He won two gold medals at the World Rowing Championships .. Rowing. Rowing ( sport ). World Rowing Championships. World Rowing Championships
not_related.