How to defined reversed word in a perl6 grammar ?

Hi, I'd like to know how can I define reserved word in a Perl6 grammar. If you have a look at https://gist.github.com/anonymous/2c04533cb3a61a00b8822ea20237ba7e , you will find a small perl grammar for parsing from clause of sql statement. The issue is when I execute this testcase that the

perl6-debug-m Regex and Grammar Debugging

Hi, I'm trying to use perl6-debug-m for doing Regex and Grammar Debugging. When I use Rakudo version 2016.10 , it's works fine. I get the behaviour which is described at https://perl6advent.wordpress.com/2012/12/05/a-perl-6-debugger/ in section "Regex and Grammar Debugging". I can easily see