What does the sand cat's diet consist of? What does the eel's diet consist of? Are any of the foods in #2 a subtype of a food in #1? Is it not the case that #3 is "yes"?
Sand cat
Sand cats eat a number of animals including insects, birds, hares, and reptiles. Eels prey on fish, worms, frogs, and lizards. Lizards are a type of reptile.
Small wild cat
Do sand cats avoid eating all of the prey of eels?