A person may put a foot on gas.Logical formLearned from17 sentences. A (coal mine gas explosion) can be in a province.Logical formLearned from17 sentences. Control may pertain-to a (gas producer).Logical formLearned from17 sentences. (Gas production) can be in a kingdom.Logical formLearned from17 sentences. An (opiate gas) can be powerful.Logical formLearned from17 sentences. (Gas deposits) can be offshore.Logical formLearned from17 sentences. Troops may lob gas.Logical formLearned from17 sentences. A (nerve gas) may kill some persons.Logical formLearned from17 sentences. A (gas pipeline) can be international.Logical formLearned from16 sentences. Gas may be exported to a country.Logical formLearned from16 sentences. A (gas explosion) may occur.Logical formLearned from16 sentences. A (greenhouse gas producer) may pertain-to the world.Logical formLearned from16 sentences. A country may supply a country with natural gas.Logical formLearned from16 sentences. Gas can be to a country.Logical formLearned from16 sentences. Domestic demand can be for gas.Logical formLearned from16 sentences.