what is the unconditioned stimulus (US), unconditioned response (UR), condition stimulus and conditioned response of this example???

Question

1.)Art goes to a meeting in New Orleans and tries some oysters at the oysters bar. He likes the taste and eats quite few. Soon he becomes very ill with an upset stomach. Now, even the thought of oysters makes him nauseous.

Answer 1

http://psychology.about.com/od/uindex/g/uncondstim.htm

http://psychology.about.com/od/cindex/g/condresp.htm