Persons may know an expression.Logical formLearned from7 sentences. An expression may compute.Logical formLearned from7 sentences. A match can be for an expression.Logical formLearned from7 sentences. A function may return an (expression string).Logical formLearned from7 sentences. Regular expressions may pertain-to (format definitions).Logical formLearned from7 sentences. An expression can be for keymap.Logical formLearned from7 sentences. Expressions may undergo an (evaluation list).Logical formLearned from7 sentences. A person may set_up an (evaluation list) of expressions.Logical formLearned from7 sentences. An expression may call backtrace.Logical formLearned from7 sentences. (History elements) may match a regular expression.Logical formLearned from7 sentences. An artistic expression can be serious.Logical formLearned from7 sentences. An expression can be three-dimensional.Logical formLearned from7 sentences. A building may be embodied in a medium of expression.Logical formLearned from7 sentences. An expression may pertain-to a user.Logical formLearned from7 sentences. Propaganda may undergo an expression.Logical formLearned from7 sentences.