A person may use masks.Logical formLearned from8 sentences. A mask can be given.Logical formLearned from8 sentences. A mask can be humanitarian.Logical formLearned from8 sentences. A (dive mask) may pertain-to a person.Logical formLearned from8 sentences. A purpose may pertain-to a mask.Logical formLearned from8 sentences. A mask may cover a head.Logical formLearned from8 sentences. A mask can be digital.Logical formLearned from8 sentences. A mask may cover a nose.Logical formLearned from8 sentences. Masks can be thick.Logical formLearned from8 sentences. Persons may wear (gas masks).Logical formLearned from8 sentences. A mask can be constituted-of-or-filled-with hatred.Logical formLearned from8 sentences. A face may be set in a mask.Logical formLearned from8 sentences. Miners may wear (oxygen masks).Logical formLearned from8 sentences. (Oxygen masks) may come_down.Logical formLearned from8 sentences. An (assistance package) may consist of masks.Logical formLearned from8 sentences.