A president may demonstrate with a focus.Logical formLearned from4 sentences. A male may demonstrate potential.Logical formLearned from4 sentences. A propensity may be demonstrated.Logical formLearned from4 sentences. Work may demonstrate an error.Logical formLearned from4 sentences. Some bombings may demonstrate that something-is-the-case.Logical formLearned from4 sentences. Attacks may demonstrate a failure.Logical formLearned from4 sentences. Levels of arsenic may demonstrate pollution.Logical formLearned from4 sentences. (Dna testing) may demonstrate that something-is-the-case.Logical formLearned from4 sentences. A male may demonstrate a kind of patience.Logical formLearned from4 sentences. Blacks may demonstrate literacy.Logical formLearned from4 sentences. Some percent of (college graduates) may demonstrate literacy.Logical formLearned from4 sentences. Some percent of graduates may demonstrate skills.Logical formLearned from4 sentences. A gallery may demonstrate.Logical formLearned from4 sentences. A bank may demonstrate.Logical formLearned from4 sentences. A course of a case may demonstrate importance of a burden of proof.Logical formLearned from4 sentences.