(Flu fears) may wear masks.Logical formLearned from8 sentences. Some residents of a world-city may wear surgical masks.Logical formLearned from8 sentences. Surgical masks may be given to (subway passengers).Logical formLearned from8 sentences. Faces may be obscured by masks.Logical formLearned from8 sentences. Persons may wear (face masks).Logical formLearned from8 sentences. Masks may undergo a festival.Logical formLearned from8 sentences. Some police may wear surgical masks.Logical formLearned from8 sentences. A mask may pertain-to a bandit.Logical formLearned from8 sentences. Thousands of persons may wear surgical masks.Logical formLearned from8 sentences. Travelers may wear masks.Logical formLearned from8 sentences. A health-department may recommend masks.Logical formLearned from8 sentences. Students may wear (face masks).Logical formLearned from8 sentences. (Face masks) may pertain-to a US-president.Logical formLearned from8 sentences. (Ski masks) may be patrolled.Logical formLearned from8 sentences. Noses may be covered by surgical masks.Logical formLearned from8 sentences.