An (energy level) can be combined.Logical formLearned from6 sentences. A combined operation can be in a country.Logical formLearned from6 sentences. (Trade surpluses) can be combined.Logical formLearned from6 sentences. A (research operation) can be combined.Logical formLearned from6 sentences. A combined ratio can be for a quarter.Logical formLearned from6 sentences. A 0-for-29 can be combined.Logical formLearned from6 sentences. (Commercial operations) can be combined.Logical formLearned from6 sentences. A mars-wrigley can be combined.Logical formLearned from6 sentences. A series can be combined.Logical formLearned from6 sentences. Some starts can be combined.Logical formLearned from6 sentences. Difficulties can be combined.Logical formLearned from6 sentences. (Gold medals) can be combined.Logical formLearned from6 sentences. A combined operation can be a compromise.Logical formLearned from6 sentences. Dollars can be combined.Logical formLearned from6 sentences. (Practice sessions) can be combined.Logical formLearned from6 sentences.