(Bird pictures) can be dirty.Logical formLearned from8 sentences. A shop can be dirty.Logical formLearned from8 sentences. Dirty tricks may abound.Logical formLearned from8 sentences. A (motel room) can be dirty.Logical formLearned from8 sentences. A (tennis ball) can be dirty.Logical formLearned from8 sentences. A chair can be dirty.Logical formLearned from8 sentences. A ceiling can be dirty.Logical formLearned from8 sentences. A communist can be dirty.Logical formLearned from8 sentences. Mechanics can be dirty.Logical formLearned from8 sentences. Persons may live in a dirty world.Logical formLearned from8 sentences. A tube can be dirty.Logical formLearned from8 sentences. A person may be felt dirty.Logical formLearned from8 sentences. A dirty trick can be moral.Logical formLearned from8 sentences. Truths can be dirty.Logical formLearned from8 sentences. A stove can be dirty.Logical formLearned from8 sentences.