Firefighters may wear masks.Logical formLearned from14 sentences. Some gunmen may wear masks.Logical formLearned from14 sentences. An (oxygen mask) can be on a face.Logical formLearned from14 sentences. Some men can be with masks.Logical formLearned from14 sentences. A mask can be bright.Logical formLearned from13 sentences. Masks can be makeshift.Logical formLearned from13 sentences. Masks can be outrageous.Logical formLearned from13 sentences. Masks can be simple.Logical formLearned from13 sentences. Masks can be distinctive.Logical formLearned from13 sentences. A facial mask can be black.Logical formLearned from13 sentences. Masks can be hideous.Logical formLearned from13 sentences. A mask can be tight.Logical formLearned from13 sentences. A value of a mask may be printed.Logical formLearned from13 sentences. A mask can be on a line.Logical formLearned from13 sentences. (Breathing masks) can be protective.Logical formLearned from13 sentences.