Looks like a good redraft but #5 isn't right. The key for the hash is automatically quoted (when possible) so it's not a bareword. It's normal/legal/non-warning Perl.

cow@moo[19]>perl -Mstrict -lwe 'my %h; $h{ABC}++; DEF;'
Bareword "DEF" not allowed while "strict subs" in use at -e line 1.
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