(Expression character classes) can be regular.Logical formLearned from6 sentences. An expression may be evaluated for (side effects).Logical formLearned from6 sentences. An (expression expr) may belong to a class.Logical formLearned from6 sentences. An expression can be useful.Logical formLearned from6 sentences. A focus may undergo an expression.Logical formLearned from6 sentences. Interest may be related to expression.Logical formLearned from6 sentences. A sound may pertain-to an expression.Logical formLearned from6 sentences. An expression can be slack.Logical formLearned from6 sentences. An expression may undergo an abbreviation.Logical formLearned from6 sentences. Some functions may be concerned with expressions.Logical formLearned from6 sentences. An (expression argument) may be evaluated.Logical formLearned from6 sentences. A then-part may pertain-to an expression.Logical formLearned from6 sentences. An approach can be to expression.Logical formLearned from6 sentences. A regular expression may match files.Logical formLearned from6 sentences. The right may pertain-to an expression.Logical formLearned from6 sentences.