With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: San Francisco is located completely within Northern California.
text_B: Frank Henry Mountain -LRB- May 17 , 1860 -- November 19 , 1939 -RRB- was an American baseball player from 1880 to 1886 .. baseball. baseball. He played seven seasons in Major League Baseball , principally as a pitcher -LRB- 143 games -RRB- , outfielder -LRB- 36 games -RRB- and first baseman -LRB- 18 games -RRB- .. Major League Baseball. Major League Baseball. pitcher. pitcher. outfielder. outfielder. first baseman. first baseman. He played for six different major league clubs and saw his most extensive playing time with the Columbus Buckeyes of the American Association , appearing in 128 games for that club during the 1883 and 1884 seasons .. Columbus Buckeyes. Columbus Buckeyes ( AA ). American Association. American Association ( 19th century ). Over the course of seven major league seasons , Mountain compiled a 58-83 -LRB- .411 -RRB- win-loss record and a 3.47 earned run average -LRB- ERA -RRB- .. win-loss record. Win–loss record ( pitching ). earned run average. earned run average. He had his best season in 1884 , pitching a no-hitter and compiling a 23-17 record with a 2.45 ERA .. no-hitter. no-hitter
not_related.