It can't. It can't. It can only repeat the information that has been fed into it by the human element.
8 seconds sound clip from the Desk Set (1957) movie soundboard.
You can hear this line at 01:41:12 in the Blu-ray version of the movie.
Quote context
[...]
- Now, if you should say to me, What question? I would, uh, tell you.
- We'll, uh... We'll try it again.
- Should Bunny Watson marry Mike Cutler, question mark.
- Wait a minute. I thought you said this machine can't evaluate.
- You know perfectly well what it says.
- Uh, yeah. That's the same answer I got the last time.
- Uh, shall we ask it another question? Good.
- Should Bunny Watson marry Richard Sumner, question mark.
[...]