A piano may pertain-to parents.Logical formLearned from7 sentences. A composer can be on piano.Logical formLearned from7 sentences. A piano may be tuned.Logical formLearned from7 sentences. A piano can be stand-up.Logical formLearned from7 sentences. A piano can be ghostly.Logical formLearned from7 sentences. A piano may undergo a purchase.Logical formLearned from7 sentences. A (piano player) may pertain-to a US-city.Logical formLearned from7 sentences. Music can be on a piano.Logical formLearned from7 sentences. A (piano part) can be difficult.Logical formLearned from7 sentences. A piano may be written/wrote.Logical formLearned from7 sentences. (Piano rolls) may pertain-to a composer.Logical formLearned from7 sentences. A piece can be for a piano.Logical formLearned from7 sentences. A piano can be on a track.Logical formLearned from7 sentences. A (piano practice) may pertain-to a person.Logical formLearned from7 sentences. A piano can be vertical.Logical formLearned from7 sentences.