tokens: I 'm a total newbie when it comes to using Terminal , so I do n't really understand what 's happening here when I try to upgrade my ruby version ( 1.8.7 ) with rvm on a Mac OS X 10.7.3 .
ner_tags: O O O O O O O O O O B-Application O O O O O O O O O O O O O O O O O B-Language O O B-Version O O B-Application O O B-Operating_System I-Operating_System I-Operating_System B-Version O