A shirt can be off a back.Logical formLearned from157 sentences. A back may pertain-to a frame.Logical formLearned from157 sentences. A back can be to a camera.Logical formLearned from156 sentences. A back may pertain-to a cart.Logical formLearned from155 sentences. A back may pertain-to a magazine.Logical formLearned from155 sentences. A back can be stiff.Logical formLearned from155 sentences. A back may pertain-to seats.Logical formLearned from155 sentences. Back may pertain-to a house.Logical formLearned from153 sentences. A back may pertain-to a cabinet.Logical formLearned from152 sentences. A back may pertain-to a horse.Logical formLearned from152 sentences. A back may pertain-to an uniform.Logical formLearned from152 sentences. A back may pertain-to cards.Logical formLearned from152 sentences. Backs may pertain-to seats.Logical formLearned from152 sentences. Front can be to back.Logical formLearned from151 sentences. A back may be ached.Logical formLearned from151 sentences.