Contributors can be authoritative.Logical formLearned from6 sentences. Contributors may pertain-to a program.Logical formLearned from6 sentences. A contributor can be to an (energy mix).Logical formLearned from6 sentences. A contributor can be rich.Logical formLearned from6 sentences. A contributor can be to a (trade imbalance).Logical formLearned from6 sentences. A contributor can be to (air quality problems).Logical formLearned from6 sentences. Some contributor may suggest that something-is-the-case.Logical formLearned from6 sentences. A company can be (campaign contributor).Logical formLearned from6 sentences. A contributor can be to some campaign.Logical formLearned from6 sentences. Contributors may be contacted.Logical formLearned from6 sentences. A contributor can be content.Logical formLearned from6 sentences. Contributor can be to a report.Logical formLearned from6 sentences. Contributors may provide insights.Logical formLearned from6 sentences. A contributor can be to research.Logical formLearned from6 sentences. Some contributors can be in an area.Logical formLearned from6 sentences.