Sentence:Teetotallers zip over the Causeway in the midst of a maze of sweaty congestion after a day pounding keyboards and missing deadlines, barely noticing the [e1]scoop[/e1] of [e2]pelicans[/e2] floating by and the kangaroos that call the secluded area home.
 e1: scoop. 
 e2 : pelicans.
Answer: Member-Collection(e2,e1)