If a food web is sorted in terms of predators and prey then those at the top of the food chain could be placed at the periphery, perhaps in a corner and the most preyed upon species at the centre.
(a food web; is sorted; in terms of predators) (a food web; prey; ) (those at the top of the food chain; could be placed; at the periphery; T:then)
a food web a food web those at the top of the food chain
is sorted prey could be placed
in terms of predators
at the periphery T:then