With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Bill Clinton's son's name is William.
text_B: Camelia Lupascu -LRB- born 29 July 1986 in Dorohoi -RRB- is a Romanian rower .. Dorohoi. Dorohoi. She finished 4th in the eight at the 2012 Summer Olympics .. eight. Rowing at the 2012 Summer Olympics – Women's eight. 2012 Summer Olympics. 2012 Summer Olympics
not_related.