Goalposts

This question requires either understanding or experiencing physics: gravity (a force that can cause objects to fall) and properties of glass (brittle) and iron (not brittle). The question also contains certain assumptions. For example, that the (hollow) glass ball is smaller than the (well-constructed, non-rusty) iron table. Lastly, answering this question depends on a deep comprehension of English combined with complex memory abilities.

If someone has solved this particular type of problem (Winograd Schema), I'd be keen to know.

https://www.cs.nyu.edu/davise/papers/WS.html

https://en.wikipedia.org/wiki/Winograd_Schema_Challenge

http://commonsensereasoning.org/problem_page.html

http://spectrum.ieee.org/automaton/robotics/artificial-intel...