A (gas station worker) can be black.Logical formLearned from14 sentences. A continent may need gas.Logical formLearned from14 sentences. A (gas pedal) can be stuck.Logical formLearned from14 sentences. An increase can be in (gas production).Logical formLearned from14 sentences. A glut can be constituted-of-or-filled-with natural gas.Logical formLearned from14 sentences. A (hydrogen gas leak) can be dangerous.Logical formLearned from14 sentences. A buyer can be constituted-of-or-filled-with gas.Logical formLearned from14 sentences. Stores of natural gas may rise.Logical formLearned from14 sentences. Natural gas can be flat.Logical formLearned from14 sentences. Gas may be used against a crowd.Logical formLearned from14 sentences. Legislation may set caps on (greenhouse gas emissions).Logical formLearned from14 sentences. A country may reduce (greenhouse gas emissions).Logical formLearned from14 sentences. (Gas supplies) may pertain-to countries.Logical formLearned from14 sentences. (Gas deliveries) can be from a country.Logical formLearned from14 sentences. Gas can be blended.Logical formLearned from14 sentences.