A contributor can be to a force.Logical formLearned from19 sentences. A (troop contributor) can be to a coalition.Logical formLearned from19 sentences. A contributor can be to a country.Logical formLearned from18 sentences. (Market heavyweight) can be a contributor to an (index increase).Logical formLearned from18 sentences. Contributors can be to (acid rain).Logical formLearned from18 sentences. A contributor can be to a series.Logical formLearned from18 sentences. Contributors can be to campaigns.Logical formLearned from18 sentences. Some contributors can be to a blog.Logical formLearned from18 sentences. Contributors can be qualified.Logical formLearned from18 sentences. A female may become a contributor.Logical formLearned from18 sentences. An ability may pertain-to a contributor.Logical formLearned from18 sentences. Stories may be submitted by contributors.Logical formLearned from18 sentences. Millions can be constituted-of-or-filled-with contributors.Logical formLearned from18 sentences. A contributor can be on a show.Logical formLearned from18 sentences. A contributor can be at a website.Logical formLearned from18 sentences.