With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Keith Urban is married to an Australian actress.
text_B: Patricia Ann `` Pat '' Moss-Carlsson -LRB- nee Moss ; 27 December 1934 -- 14 October 2008 -RRB- was one of the most successful female auto rally drivers of all time , achieving three outright wins and seven podium finishes in international rallies .. auto rally. rallying. She was crowned European Ladies ' Rally Champion five times -LRB- 1958 , 1960 , 1962 , 1964 -- 65 -RRB- .. Her older brother Stirling Moss was a Formula One Grand Prix star during the 1950s .. Stirling Moss. Stirling Moss. Formula One. Formula One. Grand Prix. Grand Prix motor racing. From 1963 until her death , Swedish rally driver Erik Carlsson was both her driving-partner and her husband .. Erik Carlsson. Erik Carlsson. She is the author of a memoir The Story So Far -LRB- 1967 -RRB- and , with her husband , co-author of The Art and Technique of Driving -LRB- 1965 -RRB- .
not_related.