OPEN_BACKQUOTE ('`')
\n ('\n')
CLOSE_BACKQUOTE ('`')
OPEN_BACKQUOTE ('`')
\n ('\n')
CLOSE_BACKQUOTE ('`')
word ('echo')
WHITE_SPACE (' ')
word ('a')
OPEN_BACKQUOTE ('`')
\n ('\n')
CLOSE_BACKQUOTE ('`')
word ('\`')
OPEN_BACKQUOTE ('`')