The Roots of the Equation

So in my quizzes I like to include some interests of mine that also happen to be student interests. My quiz this morning involved translating sentences from English into Mathematical Symbols. So I had sentences like:

Luigi can jump higher than Mario.

The Water Bending of Katara is greater than the Water Bending of Aang.

Knuckles can stay in the air longer than Tails.

The downside, of course, is that the students want to argue with me about the content of the sentence rather than translate the structure. Which is silly, because I am always right.