With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Robert Lee Yates is from Washington.
text_B: Otto Groß -LRB- born January 12 , 1890 , date of death unknown -RRB- was a German backstroke swimmer who competed in the 1912 Summer Olympics .. German. Germany. backstroke. backstroke. swimmer. Swimming ( sport ). 1912 Summer Olympics. 1912 Summer Olympics. He was born in Karlsruhe .. Karlsruhe. Karlsruhe. In 1912 he finished fifth in the 100 metre backstroke competition .. backstroke. backstroke. 100 metre backstroke competition. Swimming at the 1912 Summer Olympics – Men's 100 metre backstroke
not_related.