With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Music Bank (TV series) has only been hosted by Americans.
text_B: The 2015 -- 16 Campeonato Nacional de Futebol Feminino was the 31st edition of the top division of the Portugal women 's football championship .. Campeonato Nacional de Futebol Feminino. Campeonato Nacional de Futebol Feminino. Portugal. Portugal. It started on 5 September 2015 and ended on 19 June 2016 .. Viseu 2001 ADSC and Uniao Recreativa Cadima promotioned to the category replacing Leixoes SC and FC Cesarense .. Uniao Recreativa Cadima. Uniao Recreativa Cadima. Viseu 2001 ADSC. Viseu 2001 ADSC. Leixoes SC. Leixoes SC ( women ). FC Cesarense. FC Sesarense ( women ). CF Benfica won the championship for the second time and qualified for the Champions League .. CF Benfica. CF Benfica ( women ). Champions League. 2016–17 UEFA Women's Champions League. Clube de Albergaria was the runner-up , and Valadares Gaia FC was third .. Clube de Albergaria. Clube de Albergaria. Valadares Gaia FC. Valadares Gaia FC ( women ). Fundacao Laura Santos and Uniao Recreativa Cadima were relegated .. Fundacao Laura Santos. Fundacao Laura Santos. Uniao Recreativa Cadima. Uniao Recreativa Cadima
not_related.