An expression can be virtuous.Logical formLearned from6 sentences. An expression can be formidable.Logical formLearned from6 sentences. An expression can be cunning.Logical formLearned from6 sentences. A person may mean by an expression that something-is-the-case.Logical formLearned from6 sentences. An expression can be formalized.Logical formLearned from6 sentences. An effect can be on an expression.Logical formLearned from6 sentences. Conditions may ensure a free expression of an opinion of persons.Logical formLearned from6 sentences. A lexical analyzer can be from a set of regular expressions.Logical formLearned from6 sentences. Regular expressions can be with actions.Logical formLearned from6 sentences. A male may use some expression.Logical formLearned from6 sentences. Endurance may undergo an expression.Logical formLearned from6 sentences. An expression may be veiled.Logical formLearned from6 sentences. Cheerfulness may undergo an expression.Logical formLearned from6 sentences. Villainy may undergo an expression.Logical formLearned from6 sentences. An expression may undergo a search.Logical formLearned from6 sentences.