With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Alfred Hitchcock framed shots to maximize fear in 1999.
text_B: Wolfgang Sieber -LRB- born 3 September 1937 -RRB- is a retired German swimmer who won a bronze medal in the 200 m butterfly at the 1962 European Aquatics Championships .. 1962 European Aquatics Championships. 1962 European Aquatics Championships. He also competed at the 1960 Summer Olympics in the same event , but was eliminated in the preliminaries .. 1960 Summer Olympics. 1960 Summer Olympics
not_related.