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my $char_list = "Enter Iago, Othello, and  others";
my @Word_List =  grep { /[A-Z]\w+/ } split(/\W/, $char_list);
print "@Word_List\n";

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my $char_list = "Enter Iago, Othello, and  others";
my @Word_List;
@Word_List = ($char_list =~ /([A-Z]\w+)/g);
print "@Word_List\n";