Actions may prove helpful.Logical formLearned from9 sentences. Warships may prove a bottomless pit.Logical formLearned from9 sentences. Allegations may prove false.Logical formLearned from9 sentences. Wrongdoing may be proven.Logical formLearned from9 sentences. A visit may prove a (turning point).Logical formLearned from9 sentences. A male may prove a contrary.Logical formLearned from9 sentences. Votes may prove decisive.Logical formLearned from9 sentences. A female may prove an opponent.Logical formLearned from9 sentences. A technology may prove effective.Logical formLearned from9 sentences. A us-state may be proven.Logical formLearned from8 sentences. A male may prove a class.Logical formLearned from8 sentences. (Test results) may prove that something-is-the-case.Logical formLearned from8 sentences. A leader may prove that something-is-the-case.Logical formLearned from8 sentences. An autopsy may prove that something-is-the-case.Logical formLearned from8 sentences. A government may prove to the world that something-is-the-case.Logical formLearned from8 sentences.