An interactive fiction by Juhana Leinonen (2008) - the Inform 7 source text
The cup is a thing. It is not conversable.
The creature response of the cup is "[if the dinner plate is part of the catapult-arm]'I fixed [the trebuchet],' you declare.[paragraph break]'Good for you,' the creature says and applauds.[otherwise]'[The trebuchet] is missing a cup,' you complain.[paragraph break]'So it seems,' [the creature] says."