Number may prove that something-is-the-case.Logical formLearned from12 sentences. An approach may prove viable.Logical formLearned from12 sentences. A model may prove effective.Logical formLearned from12 sentences. Girls may prove that something-is-the-case.Logical formLearned from12 sentences. A father may prove that something-is-the-case.Logical formLearned from12 sentences. Treatments may prove effective.Logical formLearned from12 sentences. A male may prove an existence of a deity.Logical formLearned from12 sentences. An error may prove costly.Logical formLearned from12 sentences. A male may prove faithful.Logical formLearned from12 sentences. Documents may prove ownership.Logical formLearned from12 sentences. A male may prove himself a (championship threat).Logical formLearned from12 sentences. A search may prove successful.Logical formLearned from12 sentences. A temptation may prove strong.Logical formLearned from12 sentences. A popularity may prove that something-is-the-case.Logical formLearned from12 sentences. A book may prove invaluable.Logical formLearned from12 sentences.