A contribution can be valid.Logical formLearned from58 sentences. An (e-mail address) can be valid.Logical formLearned from58 sentences. A fear can be valid.Logical formLearned from58 sentences. A (bank account) can be valid.Logical formLearned from58 sentences. An example can be valid.Logical formLearned from58 sentences. A syntax can be valid.Logical formLearned from58 sentences. Interests can be valid.Logical formLearned from58 sentences. Claims can be valid.Logical formLearned from58 sentences. A comment can be valid.Logical formLearned from58 sentences. A service can be valid.Logical formLearned from57 sentences. Power can be valid.Logical formLearned from57 sentences. A lifetime can be valid.Logical formLearned from57 sentences. A function can be valid.Logical formLearned from57 sentences. A policy can be valid.Logical formLearned from57 sentences. A format can be valid.Logical formLearned from56 sentences.