A male may pertain-to rocks.Logical formLearned from18 sentences. A metamorphic rock can be fine-grained.Logical formLearned from18 sentences. Rocks may pertain-to a group.Logical formLearned from18 sentences. A (concert tour) can be by (rock band).Logical formLearned from18 sentences. A return can be to (rock roots).Logical formLearned from18 sentences. Rocks can be hard.Logical formLearned from18 sentences. (Rock bands) can be argentine.Logical formLearned from18 sentences. Fossils may be found in rocks.Logical formLearned from18 sentences. A majority may pertain-to rocks.Logical formLearned from18 sentences. A member may pertain-to a (punk rock band).Logical formLearned from18 sentences. A rock can be influential.Logical formLearned from18 sentences. A (punk rock band) can be seminal.Logical formLearned from18 sentences. A (studio album) can be by (progressive rock band).Logical formLearned from18 sentences. A (rock group) can be female.Logical formLearned from18 sentences. (Rock bands) may pertain-to 1970s.Logical formLearned from18 sentences.