With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Christina Aguilera was raised in Wexford, Pennsylvania.
text_B: Charles Abel Buffum -LRB- January 30 , 1870 -- October 1936 -RRB- was an American businessman and politician .. In 1904 , with his brother , Edwin E. Buffum , he moved to Long Beach , California and purchased a store that would grow into Buffum 's Department Stores chain .. He served as the fifth mayor of Long Beach , California from 1921 to 1924 .
not_related.