Contributors can be to date.Logical formLearned from3 sentences. Contributors can be to pollution.Logical formLearned from3 sentences. A male can be a contributor to a total.Logical formLearned from3 sentences. A contributor can be to prices of commodities.Logical formLearned from3 sentences. Black carbon can be a contributor to global warming.Logical formLearned from3 sentences. (Road traffic) may be placed at a contributor to a burden of disease.Logical formLearned from3 sentences. A contributor to a total can be extras.Logical formLearned from3 sentences. A demand can be a contributor.Logical formLearned from3 sentences. Some gases can be contributors to (acid rain).Logical formLearned from3 sentences. Contributors to a rise can be (business investment).Logical formLearned from3 sentences. (Consumer spending) can be a contributor to growth.Logical formLearned from3 sentences. Some contributor may pose a question.Logical formLearned from3 sentences. A male can be a contributor to a club.Logical formLearned from3 sentences. A contributor can be to the British economy.Logical formLearned from3 sentences. Contributors can be on a list.Logical formLearned from3 sentences.