Students can be contributors.Logical formLearned from25 sentences. A contributor can be to some newspaper.Logical formLearned from25 sentences. Some contributors can be to a volume.Logical formLearned from25 sentences. A contributor can be to disability.Logical formLearned from25 sentences. Contributors can be free-lance.Logical formLearned from25 sentences. Contributors can be to candidates.Logical formLearned from25 sentences. Contributors can be powerful.Logical formLearned from25 sentences. Contributors can be to a force.Logical formLearned from25 sentences. A contributor can be to (greenhouse gas emissions).Logical formLearned from25 sentences. A contributor can be to a debate.Logical formLearned from24 sentences. Contributors can be male.Logical formLearned from24 sentences. A contributor can be to reverb.Logical formLearned from24 sentences. A contributor can be to inflation.Logical formLearned from24 sentences. A set can be constituted-of-or-filled-with contributors.Logical formLearned from24 sentences. A cast can be constituted-of-or-filled-with contributors.Logical formLearned from24 sentences.