Sentence:Tina Moeckel and Gail Coakley have been with the Guild for 17 years, have sons and daughters who they have danced with onstage, worked with backstage, and belong to a [e1]sisterhood[/e1] of women [e2]dancers[/e2], now lifelong friends.
 e1: sisterhood. 
 e2 : dancers.
Answer: Member-Collection(e2,e1)