rest file
  RestLine:LINE_TEXT
    PsiElement(LINE)('Many modern websites have the need for a threaded commenting system.  Places')
    PsiElement(WHITESPACE)('\n')
    PsiElement(LINE)('like ')
  RestReference:REFERENCE_NAME
    PsiElement(REFERENCE_NAME)('Digg_')
  RestLine:LINE_TEXT
    PsiElement(LINE)(' and ')
  RestReference:REFERENCE_NAME
    PsiElement(REFERENCE_NAME)('Reddit_')
  RestLine:LINE_TEXT
    PsiElement(LINE)(' have great systems for responding not only to an item on')
    PsiElement(WHITESPACE)('\n')
    PsiElement(LINE)('the site, but also for responding to comments on that item as well.')