what is the best language to do this in?

I have a set of data:
Sally has attribute A and attribute B
Bob has attribute D and attribute R
John has attribute S and attribute T
Melissa has attribute G and attribute M

etc.  There are over 300 names and 21 different attributes (let's call them A, B, ..., T, U) in varying combinations.

I want to pick out a set of 5 names with 2 attributes each that fit in a pattern of (for example) A,B,C,D,E,F,H,I,J,K

What's the best way to go about this?  I'm programming language neutral, though I do have some experience in bash, python and perl.  It would have to take input from a text file (either tab delimited or csv) and output which names to pick and what their attributes are.

So let me get this straight, would this solve your problem?
1) generate all possible zoo triples
2) filter out all results where duplicate animals are seen
3) inspect the remaining results for specified animals

Would this solve your problem?