A mask can be controlled.Logical formLearned from13 sentences. Masks can be cardboard.Logical formLearned from13 sentences. (Oxygen masks) can be on board.Logical formLearned from13 sentences. Masks may work.Logical formLearned from13 sentences. A person may pull_off a mask.Logical formLearned from13 sentences. Gunmen may wear masks.Logical formLearned from13 sentences. A male may rip_off a mask.Logical formLearned from13 sentences. A mask can be constituted-of-or-filled-with stone.Logical formLearned from13 sentences. Masks may work.Logical formLearned from13 sentences. A mask can be homemade.Logical formLearned from13 sentences. A (burial mask) can be golden.Logical formLearned from13 sentences. (Police officers) may wear masks.Logical formLearned from13 sentences. Persons may remove masks.Logical formLearned from13 sentences. Persons may have (gas masks).Logical formLearned from13 sentences. Masks can be primitive.Logical formLearned from13 sentences.