Sentence:A [e1]regiment[/e1] of Swiss [e2]pikemen[/e2] recaptured some of their former glory during the Battle of Dreux in 1562, when they singlehandedly defended the city of Dreux long enough for the Catholic army to send in reinforcements.
 e1: regiment. 
 e2 : pikemen.
Answer: Member-Collection(e2,e1)