Masks can be dainty.Logical formLearned from20 sentences. A mask can be constituted-of-or-filled-with blood.Logical formLearned from20 sentences. A mask may work.Logical formLearned from20 sentences. Masks can be creepy.Logical formLearned from20 sentences. Masks may be made.Logical formLearned from20 sentences. Some cyclists may wear masks.Logical formLearned from20 sentences. (Respiratory masks) may be concerned over reports of levels of (air pollution).Logical formLearned from20 sentences. Protective masks may undergo wearings.Logical formLearned from20 sentences. A mask can be clear.Logical formLearned from20 sentences. A mask can be constituted-of-or-filled-with horror.Logical formLearned from20 sentences. A mask may fit.Logical formLearned from20 sentences. Masks may drop from a ceiling.Logical formLearned from20 sentences. (Gas masks) may pertain-to a person.Logical formLearned from20 sentences. A person may don a mask.Logical formLearned from20 sentences. A monopoly can be on (gas mask manufacturing).Logical formLearned from20 sentences.