With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: San Francisco is in America.
text_B: Tadeusz Bartosik -LRB- 15 May 1925 -- 16 April 1985 -RRB- was a Polish actor .. He appeared in twenty-one films and television shows between 1959 and 1985 .
not_related.