With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Christina Aguilera has sold 50 million albums globally.
text_B: MISS.NET -LRB- full legal name  : MISS.NET d.o.o. Bihac -RRB- is one of the leading Cable Television and Broadband Internet service provider in Una-Sana Canton , Bosnia and Herzegovina .. Bihac. Bihac. Bosnia and Herzegovina. Bosnia and Herzegovina. Una-Sana Canton. Una-Sana Canton. Cable Television. Cable Television. Broadband Internet. Broadband Internet. The company was founded in 2004 and its headquarters is located in Bihac .. Bihac. Bihac
not_related.