With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Rich Girl (Gwen Stefani song) was nominated for a music award.
text_B: Grego is a surname .. Notable people with the surname include  :. Joao Grego -LRB- 15th century -RRB- , Portuguese explorer. Joao Grego. Joao Grego. Joseph Grego -LRB- 1843 -- 1908 -RRB- , English art collector. Joseph Grego. Joseph Grego. Melania Grego -LRB- born 1973 -RRB- , Italian water polo player. Melania Grego. Melania Grego
not_related.