Brains may pertain-to pig.Logical formLearned from7 sentences. Persons may see a pig.Logical formLearned from7 sentences. Hearts may pertain-to pigs.Logical formLearned from7 sentences. A knuckle may pertain-to pig.Logical formLearned from7 sentences. A bill can be a pig.Logical formLearned from7 sentences. A stomach may pertain-to a pig.Logical formLearned from7 sentences. Pigs may be born.Logical formLearned from7 sentences. Pigs may be housed.Logical formLearned from7 sentences. Persons may be used as (guinea pigs).Logical formLearned from7 sentences. Pigs may undergo a feeding.Logical formLearned from7 sentences. A source may pertain-to pigs.Logical formLearned from7 sentences. Pigs can be for sale.Logical formLearned from7 sentences. Pigs may pose a (food safety risk).Logical formLearned from7 sentences. Some pigs may be kept.Logical formLearned from7 sentences. Persons can be around pigs.Logical formLearned from7 sentences.