Levels can be in rats.Logical formLearned from8 sentences. A rat may be given.Logical formLearned from8 sentences. A rat may be caught in a trap.Logical formLearned from8 sentences. A (rat snake) can be gray.Logical formLearned from8 sentences. Rats may fle a ship.Logical formLearned from8 sentences. (Dna synthesis) can be in (rat hepatocytes).Logical formLearned from8 sentences. Milk of rats may contain radioactivity.Logical formLearned from8 sentences. Rats can be on days.Logical formLearned from8 sentences. Development can be in rats.Logical formLearned from8 sentences. Rats may learn that something-is-the-case.Logical formLearned from8 sentences. Work can be with rats.Logical formLearned from8 sentences. Rats can be constituted-of-or-filled-with some sexes.Logical formLearned from8 sentences. Effects can be on rats.Logical formLearned from8 sentences. Neurons can be in brains of rats.Logical formLearned from8 sentences. Research can be with rats.Logical formLearned from8 sentences.