my father is john tilley. he's the owner and trainer of chaser.orld. >> okay. in front of us there are about a dozen of chaser's toys. >> correct. >> each one of them has -- chaser knows where the hatchet is and the goose and stuff like that. what are you going to show us? >> she knows their names. so we could put these anywhere and she should be able to find them. chaser, stand. stand up. >> how old is chaser? >> she's nine. >> should we say a word? >> sure. why don't you ask her to find something, elisabeth. >> hi, chaser. chaser, can you find goos find ? oh, my! good job! >> unfortunately the goose is alive. >> oh, my. >> out, chaser. >> good girl, chaser. >> chaser, curvy couch. it's not the actual couch. that's a toy. >> chaser, curvy couch, right now. do elisabeth. curvy couch, chaser. curvy couch. do it. right now. curvy couch. yeah, that's. to elisabeth. she met elisabeth yesterday. >> we have met. >> what you're saying is the trick is teaching a value to the words. >> yes. >> what did your dad do? >> it's interesting, brian, 'cause it's n