in reply to 'undef' in the matrix instead of values!!!

I'm not seeing what kind of package $Measure is, as it appears you're grabbing it from @ARGV. Regardless, you should see what this returns, because I think it's the key.
$Measure->getRelatedness("hotdog\n#n#1", "hamburger\n#n#1");
If you look too closely, the answer will chomp you in the rear.

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