An expression may be represented by a number.Logical formLearned from13 sentences. A mother may have an expression.Logical formLearned from13 sentences. Expression can be on faces.Logical formLearned from13 sentences. Expressions can be joyful.Logical formLearned from13 sentences. A male may laugh_out at an expression.Logical formLearned from13 sentences. A facial expression can be pained.Logical formLearned from13 sentences. An expression may pertain-to the world.Logical formLearned from13 sentences. Expression can be at a (time lag).Logical formLearned from13 sentences. Genuine article can be an expression.Logical formLearned from13 sentences. A person may have a facial expression.Logical formLearned from13 sentences. An expression can be warm.Logical formLearned from13 sentences. An expression can be bemused.Logical formLearned from13 sentences. A face may hold an expression.Logical formLearned from13 sentences. An expression can be changing.Logical formLearned from13 sentences. A clarity may pertain-to an expression.Logical formLearned from13 sentences.