word ('cat')
WHITE_SPACE (' ')
HEREDOC_MARKER_TAG ('<<')
HEREDOC_MARKER_START ('END')
WHITE_SPACE (' ')
<< ('<<')
word ('END2')
\n ('\n')
HEREDOC_CONTENT ('ABC\n')
HEREDOC_MARKER_END ('END')
\n ('\n')
word ('ABC')
\n ('\n')
word ('END2')
