tokens: I have researched Scringo , as it is a free implementation of person to person chat , but the docs on Group chat imply only using ' chat rooms ' , not personal small group related chats such as in GroupMe .
ner_tags: O O O B-Application O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B-Application O