Sentence:In December, 1216, Pope Honorius III (1216 - 1227), the successor of Innocent III, approved Dominic's plan for an [e1]order[/e1] of contemplative [e2]preachers[/e2] exercising the priestly ministry and living in mendicant poverty.
 e1: order. 
 e2 : preachers.
Answer: Member-Collection(e2,e1)