The other end of the knock-knock joke concept is to receive a joke – where the child wants to tell the robot a joke. If you know any seven-year-olds, then you know that this is a requirement also – the child will want to tell the robot a joke as well. The receiving dialog is pretty simple as well. The user will say knock, knock, which is the cue to the robot to go into the receive knock-knock joke mode. The robot then has only one response – who’s there. We could also add who is there? if we want to keep to the common sci-fi concept that robots do not use contractions.
Note: Data, the android from Star Trek: The Next Generation, stated many times he was not able to use contractions, although the writers slipped ...
