Demonstrators may don (face masks).Logical formLearned from7 sentences. A man can be without a mask.Logical formLearned from7 sentences. (Ski masks) may place a noose.Logical formLearned from7 sentences. A mask may be fashioned.Logical formLearned from7 sentences. (Oxygen masks) may pertain-to a plane.Logical formLearned from7 sentences. A mask can be feminine.Logical formLearned from7 sentences. Masks can be over noses.Logical formLearned from7 sentences. A person can be behind a mask.Logical formLearned from7 sentences. Hundreds can be constituted-of-or-filled-with (gas masks).Logical formLearned from7 sentences. A (trademark mask) may pertain-to a male.Logical formLearned from7 sentences. Persons may walk around masks.Logical formLearned from7 sentences. A woman can be with a (gauze mask).Logical formLearned from7 sentences. Thousands of residents may wear surgical masks.Logical formLearned from7 sentences. American soldiers may don (gas masks).Logical formLearned from7 sentences. Troops may don (gas masks).Logical formLearned from7 sentences.