A signature may pertain-to a male.Logical formLearned from13 037 sentences. A signature may pertain-to a person.Logical formLearned from6 311 sentences. A signature may pertain-to a female.Logical formLearned from3 056 sentences. Signatures can be enough.Logical formLearned from2 245 sentences. Signatures can be valid.Logical formLearned from1 093 sentences. A signature may pertain-to a US-president.Logical formLearned from1 031 sentences. A signature may pertain-to a president.Logical formLearned from918 sentences. A signature may pertain-to a president.Logical formLearned from672 sentences. Thousands can be constituted-of-or-filled-with signatures.Logical formLearned from575 sentences. Signatures can be required.Logical formLearned from469 sentences. A signature may pertain-to a country.Logical formLearned from440 sentences. A signature may pertain-to persons.Logical formLearned from419 sentences. A (signature issue) may pertain-to a male.Logical formLearned from390 sentences. A (signature style) may pertain-to a male.Logical formLearned from374 sentences. A (signature song) may pertain-to a male.Logical formLearned from370 sentences.