3628
Ultrastructural evidence reveals that at 8 weeks the grafts are composed primarily of collagen and fibroblasts with rough endoplasmic reticulum and vesicles .
 Anatomy: grafts; Anatomy: fibroblasts; Anatomy: endoplasmic reticulum; Anatomy: vesicles
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities: grafts, fibroblasts, endoplasmic reticulum, vesicles 
Answer:
 Anatomy: grafts; Anatomy: fibroblasts; Anatomy: endoplasmic reticulum; Anatomy: vesicles