A person may have pet rats.Logical formLearned from7 sentences. Rats can be rats.Logical formLearned from7 sentences. A rat can be angry.Logical formLearned from7 sentences. A rat may last without water.Logical formLearned from7 sentences. (Birth defects) can be in rats.Logical formLearned from7 sentences. Rats can be social animals.Logical formLearned from7 sentences. Rat may eat grain.Logical formLearned from7 sentences. A robot may be controlled by (rat neurons).Logical formLearned from7 sentences. Persons may have a (rat problem).Logical formLearned from7 sentences. (Rat snacks) can be regular.Logical formLearned from7 sentences. A rat can be by a time.Logical formLearned from7 sentences. (Control groups) can be constituted-of-or-filled-with rats.Logical formLearned from7 sentences. A female may have some rats.Logical formLearned from7 sentences. A breed can be constituted-of-or-filled-with rat.Logical formLearned from7 sentences. (Rug rats) may belong to a person.Logical formLearned from7 sentences.