A (folk duo) can be short-lived.Logical formLearned from3 sentences. A duo may have a hit.Logical formLearned from3 sentences. A duo may release a second album.Logical formLearned from3 sentences. A duo may travel to a US-city.Logical formLearned from3 sentences. A duo may defend a championship.Logical formLearned from3 sentences. A duo can be elegant.Logical formLearned from3 sentences. A duo can be permanent.Logical formLearned from3 sentences. A (pop band) of an era can be a duo.Logical formLearned from3 sentences. A male may start a duo.Logical formLearned from3 sentences. A male can be part of a (comedy duo).Logical formLearned from3 sentences. (Duo performances) can be constituted-of-or-filled-with tunes.Logical formLearned from3 sentences. Duos can be with a male.Logical formLearned from3 sentences. A (comedy duo) can be stand-up.Logical formLearned from3 sentences. A rock may pertain-to a duo.Logical formLearned from3 sentences. A male can be as a duo.Logical formLearned from3 sentences.