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#!/usr/bin/perl
use strict;
...
doing addActor on ralph with mary
don't know how to doActor on bob

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package Thing2;

...
doing findActor on bob with quincy
doing addActor on ralph with mary
Can't locate object method "doActor" via package "Thing2" (perhaps you
+ forgot to load "Thing2"?) at ./qs.pl line 76.