Sentence:We did spot a few elephants, cape buffaloes, and warthogs, when we got so close we could actually count the warts on their faces, but our best shots were of the [e1]corps[/e1] of [e2]giraffes[/e2], who towered over us at over eighteen feet tall and weighed in excess of 2,000 pounds.
 e1: corps. 
 e2 : giraffes.
Answer: Member-Collection(e2,e1)