An estrous cycle can be in rats.Logical formLearned from5 sentences. Some studies can be in a rat.Logical formLearned from5 sentences. A (toxicity study) may be conducted in rats.Logical formLearned from5 sentences. Rats can be bright.Logical formLearned from5 sentences. Rats may show an increase.Logical formLearned from5 sentences. Lesions can be in rats.Logical formLearned from5 sentences. A brain can be in rats.Logical formLearned from5 sentences. Rat can be in a skull.Logical formLearned from5 sentences. A status may pertain-to a rat.Logical formLearned from5 sentences. Rats may be swallowed.Logical formLearned from5 sentences. Lungs can be constituted-of-or-filled-with rats.Logical formLearned from5 sentences. Responses can be in rats.Logical formLearned from5 sentences. Rats may be suffered.Logical formLearned from5 sentences. Lines can be constituted-of-or-filled-with rats.Logical formLearned from5 sentences. Rats may be castrated.Logical formLearned from5 sentences.