In my private copy (which doesnt do field reps at all, so i dont upload it), i added support for yowlp. Here is what you need.

@1746
warcry = "bellow" if line =~ /Bellow/
warcry = "yowlp" if line =~ /Yowlp/

@2131
$mastersWarcry = "bellow" if(line =~ /Let me show you how Bertrandt/i);
$mastersWarcry = "yowlp" if(line =~ /Let me show you how Yertie/i);

@2151
$beingInstructed = false if(line =~ /try it a few times/);
$beingInstructed = false if(line =~ /Now you try a few times/);