A back may pertain-to a green.Logical formLearned from622 sentences. Clothings can be on backs.Logical formLearned from622 sentences. A back may pertain-to a shop.Logical formLearned from620 sentences. A back may pertain-to a knee.Logical formLearned from598 sentences. A back may pertain-to a bike.Logical formLearned from598 sentences. A back may pertain-to a tongue.Logical formLearned from597 sentences. A male can be on a back.Logical formLearned from596 sentences. A back may pertain-to heads.Logical formLearned from594 sentences. A (back yard) may pertain-to persons.Logical formLearned from576 sentences. A back may pertain-to a jersey.Logical formLearned from575 sentences. A back may pertain-to a court.Logical formLearned from575 sentences. A back may pertain-to a sofa.Logical formLearned from569 sentences. Pockets can be in back of seats.Logical formLearned from562 sentences. A back may pertain-to hands.Logical formLearned from562 sentences. A person may lie on a back.Logical formLearned from558 sentences.