With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tanzania is in eastern Africa on the coast.
text_B: Bjorn Kristian Ulvaeus -LRB- -LSB- bjœːn ˈɵlviːʊs -RSB- , born 25 April 1945 ; credited as Bjorn Ulvæus -RRB- is a Swedish songwriter , producer , a former member of the Swedish musical group ABBA -LRB- 1972 -- 1982 -RRB- , and co-composer of the musicals Chess , Kristina fran Duvemala , and Mamma Mia !. ABBA. ABBA. Swedish. Swedes. Chess. Chess ( musical ). Kristina fran Duvemala. Kristina fran Duvemala. He co-produced the film Mamma Mia !. with fellow ABBA member and close friend Benny Andersson .. ABBA. ABBA. Benny Andersson. Benny Andersson
not_related.