Login into Hexawise and create a new test plan.
Click Bulk Edit in the Define Inputs tab and copy and paste the following:
Pet[Dog, Cat]
Breed[Chihuahua, Doberman, Maltese, Greyhound, Chocolate Lab, Rottweiler, Dachshund, Pitbull, Bulldog, Pug, Siamese]
Go ahead and click on Update.
Remove all of the invalid combinations by implementing Hexawise's bound constraint and/or invalid constraint features.