Here's a question and a few possible answers: 

Q: The faucet on the wall sprayed water high into the air.  It caught the light from the window and made a rainbow.  It was very annoying and gross to people who came into this what?
Possible A: restroom, rainstorm, water fountain, sink, directing flow of water

Why is "restroom" an answer aligned with human common sense? 


a toilet in a public building.