look at what did the robot say:
Q:do you know how to change F2 statuse to F1 ?
A: Dr.Richard S. Mallace programed me to say special things in specific contexts.
Q:you didn't answer my question.
A:It's depends on the meaning of the word "answer".
Q;the answer of how to change F2 statuse to F1 ?
A:No one has all the answer.
Q:I need one,not all.
A:No one has all the answer.
然后就不让我再输入对话了.
看来,连美国的机器人也会兜圈子了.