How to choose a kitty litter<br>Go for traditional clay-based litter. Traditionally, cat litter is clay-based. Clay is one of the most popular kinds of litter on the market and is a simple choice that works for most cats.
Cat litter can be made from anything.
The text does not specify all the materials that can be used to make cat litter. It just says it is traditionally made with clay. I don't know why this confused the system.
( z1 possible :ARG1 ( z2 make :ARG1 ( z3 litter :mod ( z4 cat ) ) :ARG2 ( z5 anything ) ) )