print "hello, world!\n"
PPI::Document
  PPI::Statement
    PPI::Token::Word  	'print'
    PPI::Token::Quote::Double  	'"hello, world!\n"'
print "goodbye, world!\n"
PPI::Document
  PPI::Statement
    PPI::Token::Word  	'print'
    PPI::Token::Quote::Double  	'"goodbye, world!\n"'