That's because it wasn't formatted correctly due to missing code tags (which were presumably left out so that the input text would be shown properly). When I first ran moritz's code, I just got the original string, but when I substituted:
$str =~ s/[^\p{Latin}\s]//g;
for this:
$str =~ s/^\p{Latin}\s//g;
it worked.
EDIT: If you have lots of extra spaces in your output, you could run it through $str =~ s/ {2,}/ /g;, too. Something to keep in mind is that moritz's approach (as is) will remove punctuation.
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