Classes may undergo a collaboration.Logical formLearned from5 sentences. Soldiers may undergo a collaboration.Logical formLearned from5 sentences. Contacts can be for collaboration.Logical formLearned from5 sentences. Collaborations can be lifelong.Logical formLearned from5 sentences. Collaboration can be with anesthesiologists.Logical formLearned from5 sentences. Collaborations can be with an artist.Logical formLearned from5 sentences. Collaboration can be with communists.Logical formLearned from5 sentences. (Research collaboration) can be with universities.Logical formLearned from5 sentences. Films may be made in collaboration.Logical formLearned from5 sentences. A play can be a collaboration.Logical formLearned from5 sentences. Some collaborations can be with composer.Logical formLearned from5 sentences. Collaborations can be with author.Logical formLearned from5 sentences. A collaboration can be with screenwriter.Logical formLearned from5 sentences. Collaborations can be sporadic.Logical formLearned from5 sentences. A collaboration can be a collaboration.Logical formLearned from5 sentences.