(List
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('command', {[DQ [LIT_CHARS "printf 'a"][\ LIT_ESCAPED_CHAR "\\n"][LIT_CHARS b][\ LIT_ESCAPED_CHAR "\\n"][LIT_CHARS c][\ LIT_ESCAPED_CHAR "\\n"][LIT_CHARS "'"]]})])
  (Com {[LIT_CHARS mkfifo]} {[LIT_CHARS first]}  )
  (Com {[LIT_CHARS mkfifo]} {[LIT_CHARS rest0]}  )
  (Subshell
    (Fork
      (Pipeline
        (Com {[LIT_CHARS eval]} {[DQ [VarSub command]]}        )
        (Com {[LIT_CHARS tee]} {[ComSub (Com redirects=[(FilenameRedirectNode filename={[LIT_CHARS first]} <REDIR_GREAT ">"> 1)]{[LIT_CHARS head]} {[LIT_CHARS -1]})]}        )
        (Com {[LIT_CHARS tail]} {[LIT_CHARS -n]} {[LIT_OTHER "+"] [LIT_CHARS 2]}
          <
          (FilenameRedirectNode filename={[LIT_CHARS rest0]} <REDIR_GREAT ">"> 1),
          >
        )
      )
    )
  )
  (Com {[LIT_CHARS cat]} {[LIT_CHARS first]}  )
  (Com {[LIT_CHARS mkfifo]} {[LIT_CHARS rest1]}  )
  (Subshell
    (Fork
      (Pipeline
        (Com {[LIT_CHARS cat]} {[LIT_CHARS rest0]}        )
        (Com {[LIT_CHARS tee]} {[ComSub (Com redirects=[(FilenameRedirectNode filename={[LIT_CHARS first]} <REDIR_GREAT ">"> 1)]{[LIT_CHARS head]} {[LIT_CHARS -1]})]}        )
        (Com {[LIT_CHARS tail]} {[LIT_CHARS -n]} {[LIT_OTHER "+"] [LIT_CHARS 2]}
          <
          (FilenameRedirectNode filename={[LIT_CHARS rest1]} <REDIR_GREAT ">"> 1),
          >
        )
      )
    )
  )
  (Com {[LIT_CHARS cat]} {[LIT_CHARS first]}  )
  (Com {[LIT_CHARS mkfifo]} {[LIT_CHARS rest2]}  )
  (Subshell
    (Fork
      (Pipeline
        (Com {[LIT_CHARS cat]} {[LIT_CHARS rest1]}        )
        (Com {[LIT_CHARS tee]} {[ComSub (Com redirects=[(FilenameRedirectNode filename={[LIT_CHARS first]} <REDIR_GREAT ">"> 1)]{[LIT_CHARS head]} {[LIT_CHARS -1]})]}        )
        (Com {[LIT_CHARS tail]} {[LIT_CHARS -n]} {[LIT_OTHER "+"] [LIT_CHARS 2]}
          <
          (FilenameRedirectNode filename={[LIT_CHARS rest2]} <REDIR_GREAT ">"> 1),
          >
        )
      )
    )
  )
  (Com {[LIT_CHARS cat]} {[LIT_CHARS first]}  )
  (Com {[LIT_CHARS mkfifo]} {[LIT_CHARS rest3]}  )
  (Subshell
    (Fork
      (Pipeline
        (Com {[LIT_CHARS cat]} {[LIT_CHARS rest2]}        )
        (Com {[LIT_CHARS tee]} {[ComSub (Com redirects=[(FilenameRedirectNode filename={[LIT_CHARS first]} <REDIR_GREAT ">"> 1)]{[LIT_CHARS head]} {[LIT_CHARS -1]})]}        )
        (Com {[LIT_CHARS tail]} {[LIT_CHARS -n]} {[LIT_OTHER "+"] [LIT_CHARS 2]}
          <
          (FilenameRedirectNode filename={[LIT_CHARS rest3]} <REDIR_GREAT ">"> 1),
          >
        )
      )
    )
  )
)