Delight may undergo expressions.Logical formLearned from40 sentences. An opportunity can be for expression.Logical formLearned from40 sentences. An expression can be organized.Logical formLearned from40 sentences. Words may undergo an expression.Logical formLearned from40 sentences. (Expression searches) can be regular.Logical formLearned from40 sentences. An expression can be dull.Logical formLearned from40 sentences. Hate may undergo an expression.Logical formLearned from40 sentences. An expression can be vigorous.Logical formLearned from40 sentences. An ideal may undergo an expression.Logical formLearned from40 sentences. An expression can be unconscious.Logical formLearned from40 sentences. Expressions can be somber.Logical formLearned from40 sentences. Expressions may pertain-to a US-president.Logical formLearned from40 sentences. An expression can be false.Logical formLearned from40 sentences. Regular expressions can be extended.Logical formLearned from40 sentences. An (expression recognition) can be facial.Logical formLearned from40 sentences.