A country may put gas.Logical formLearned from12 sentences. (Propane gas cylinders) can be modified.Logical formLearned from12 sentences. A fire can be at a (gas plant).Logical formLearned from12 sentences. A (gas market) may pertain-to a country.Logical formLearned from12 sentences. Gas may be created.Logical formLearned from12 sentences. A liquid may turn into gas.Logical formLearned from12 sentences. A (methane gas explosion) can be powerful.Logical formLearned from12 sentences. A person may fire_back gas.Logical formLearned from12 sentences. A country may equip residents with (gas masks).Logical formLearned from12 sentences. A (gas pipeline) may pertain-to a country.Logical formLearned from12 sentences. (Gas chambers) can be a detail.Logical formLearned from12 sentences. A (methane gas explosion) can be at a mine.Logical formLearned from12 sentences. A country may buy natural gas from a country.Logical formLearned from12 sentences. Gas may be suspected.Logical formLearned from12 sentences. A (nerve gas attack) can be on subways.Logical formLearned from12 sentences.