A face may pertain-to a pig.Logical formLearned from13 sentences. Heparin may be derived from (pig intestines).Logical formLearned from13 sentences. A pig can be as a good-luck charm.Logical formLearned from13 sentences. Exports can be constituted-of-or-filled-with pigs.Logical formLearned from13 sentences. A (pig disease) can be deadly.Logical formLearned from13 sentences. Pigs can be severed.Logical formLearned from13 sentences. A cull can be constituted-of-or-filled-with some pigs.Logical formLearned from13 sentences. A strain of (bird flu) may be found in pigs.Logical formLearned from13 sentences. Contact can be with a pig.Logical formLearned from12 sentences. A (guinea pig) can be in an experiment.Logical formLearned from12 sentences. Some percent can be constituted-of-or-filled-with pigs.Logical formLearned from12 sentences. A male may be used as a (guinea pig).Logical formLearned from12 sentences. Pigs may be reared.Logical formLearned from12 sentences. A pig can be in a country.Logical formLearned from12 sentences. Pigs can be grown.Logical formLearned from12 sentences.