An expression can be appalled.Logical formLearned from21 sentences. An expression can be upon a face.Logical formLearned from21 sentences. Imagination may undergo an expression.Logical formLearned from21 sentences. An expression can be organic.Logical formLearned from21 sentences. A doctrine may undergo an expression.Logical formLearned from21 sentences. Defiance may undergo expressions.Logical formLearned from21 sentences. A strategy may undergo an expression.Logical formLearned from21 sentences. Green (fluorescent protein) may undergo an expression.Logical formLearned from21 sentences. National pride may undergo expressions.Logical formLearned from21 sentences. An expression can be stony.Logical formLearned from21 sentences. An expression of a child may be encouraged.Logical formLearned from21 sentences. A face can be with an expression.Logical formLearned from21 sentences. Isoforms may undergo an expression.Logical formLearned from21 sentences. Persons may hear an expression.Logical formLearned from21 sentences. A regular expression may match.Logical formLearned from21 sentences.