Persons may be exposed to secondhand smoke.Logical formLearned from21 sentences. (Smoke detectors) may undergo a use.Logical formLearned from21 sentences. Smoke can be clear.Logical formLearned from21 sentences. Smoke can be nasty.Logical formLearned from21 sentences. Smoke can be harsh.Logical formLearned from21 sentences. A (smoke tour) may pertain-to a us-state.Logical formLearned from21 sentences. Smoke of battle may clear.Logical formLearned from21 sentences. Smoke can be blue.Logical formLearned from21 sentences. Smokes may pertain-to a female.Logical formLearned from21 sentences. Smokes may pertain-to persons.Logical formLearned from21 sentences. Smoke may rise from a city.Logical formLearned from21 sentences. A puff can be constituted-of-or-filled-with blue smoke.Logical formLearned from21 sentences. Hopes may go_up in smoke.Logical formLearned from21 sentences. Smoke can be smelly.Logical formLearned from21 sentences. A (cigar smoke) may pertain-to a male.Logical formLearned from21 sentences.