#!/usr/bin/perl
use warnings;
use strict;
use feature qw{ say };

my @strings = qw( He_is_super_hero_Spiderman
                  He_was_a_super_actor_Tom );

for my $string (@strings) {

    my ($spiderman_or_tom) = $string =~ /Spiderman|Tom/g;
    say $spiderman_or_tom;

    my ($last_word) = (split /_/, $string)[-1];
    say $last_word;

    my ($last_capitalized) = $string =~ /.*([[:upper:]][^_]+)/;
    say $last_capitalized;

}