With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Mary Marvel is a derivation of a personage from DC Comics.
text_B: Wisdom Thomas Siziba -LRB- 26 October 1980 -- 15 April 2009 -RRB- was a Zimbabwean cricketer who played for Matabeleland .. Matabeleland. Matabeleland cricket team. Siziba played 29 matches as a wicket-keeper batsman for Matabeleland between 2000 and 2005 before leaving for South Africa as the cricketing infrastructure in Zimbabwe began to fall apart .. wicket-keeper. wicket-keeper. Zimbabwe. Zimbabwe. Matabeleland. Matabeleland cricket team. batsman. batsman. Born in Bulawayo , Siziba suffered from epilepsy .. Bulawayo. Bulawayo. epilepsy. epilepsy. He died from heart failure while living in South Africa , aged 28 .
not_related.