With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Atlantic City is a film.
text_B: San Marino competed at the 2016 Winter Youth Olympics in Lillehammer , Norway from 12 to 21 February 2016 .. Lillehammer. Lillehammer. San Marino. San Marino. 2016 Winter Youth Olympics. 2016 Winter Youth Olympics. Norway. Norway
not_related.