Greetings fellow monks, this poor novice has been struggling away at a simple problem for quite some time now. I am trying to test to see if the value of a variable is one of two values. If it is neither print a message indicating there was an error.

#!/usr/bin/perl -w
use strict;

my $var = "yes";

if ($var eq ("yes" or "no")) {
    print  "You choose $var\n";
 }else{
    print  "you chose something other then yes or no\n"
}
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Now if I change $var to something like "what", I get "you chose something other then yes or no". If I change $var to "yes", I get "you choose yes". If I change $var to "no", I would expect to get "you choose no". However I am getting "You chose something other then yes or no". Am I missing something here?

Thanks for the help in advance!