With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Dinosaur lives in nests.
text_B: The 1996 Star World Championships were held in Rio de Janeiro , Brazil between January 9 and 21 , 1996 .. Star World Championships. Star World Championships. Rio de Janeiro. Rio de Janeiro. Brazil. Brazil. The hosting yacht club was Iate Clube do Rio de Janeiro .. Rio de Janeiro. Rio de Janeiro. Iate Clube do Rio de Janeiro. Iate Clube do Rio de Janeiro
not_related.