!begin_itemize
!item This is the first item of the outer
      itemize environment.
!item This is the second item of the outer
      itemize environment.
      !begin_itemize
      !item This is the 1st item of the inner one.
      !item This is the 2nd item of the inner one.
      !end_itemize
!item This is the third item of the outer
      itemize environment.
!end_itemize
