An expression may take_over a face.Logical formLearned from8 sentences. An expression can be livid.Logical formLearned from8 sentences. An expression can be withdrawn.Logical formLearned from8 sentences. Some expression may provide a person a sense of responsibility.Logical formLearned from8 sentences. Expressions can be romantic.Logical formLearned from8 sentences. An expression can be dumbfounded.Logical formLearned from8 sentences. A boy may undergo an expression.Logical formLearned from8 sentences. An expression may pertain-to a mom.Logical formLearned from8 sentences. A male may listen with an expression.Logical formLearned from8 sentences. A male may look_up at an expression.Logical formLearned from8 sentences. An expression can be a mix.Logical formLearned from8 sentences. An expression can be gone.Logical formLearned from8 sentences. A person may sit with a blank expression.Logical formLearned from8 sentences. A nuclear receptor may regulate an expression of genes.Logical formLearned from8 sentences. An agent may undergo an expression.Logical formLearned from8 sentences.