sentences: living underground can be used for hiding from predators & hiding can be used for avoiding predators ->  living underground can be used for avoiding predators  living underground can be used for avoiding predators & a predator eats other animals for food ->  living underground can be used for avoiding being eaten by predators  a hawk is a kind of predator & an owl is a kind of predator ->  hawks and owls are kinds of predators  living underground can be used for avoiding being eaten by predators & hawks and owls are kinds of predators -> living underground can be used for avoiding being eaten by hawks and owls