Editors should not make the mistake of thinking that if A is published by a reliable source , and B is published by a reliable source , then A and B can be joined together in an article to reach conclusion C. This would be a synthesis of published material that advances a new position , and that constitutes original research . If one reliable source says A , and another reliable source says B , do not join A and B together to imply a conclusion C that is not mentioned by either of the sources . This would be a synthesis of published material to advance a new position , which is original research .