code: public Set<String> editMention( String mention ) {
          Set<String> result = new HashSet<String>();
          result.add( mention.trim().toLowerCase() );
          return result;
      }
docs: /*
  Simple, trim and make it lowercase
  (non-Javadoc)
  @see ubic.pubmedgate.resolve.mentionEditors.MentionEditor#editMention(java.lang.String)