4800
Upon HTPB treatment , cell cycle arrest was induced and subsequently led to mitochondria - mediated apoptosis .
 Anatomy: cell; Anatomy: mitochondria
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: cell, mitochondria 
Answer:
 Anatomy: cell; Anatomy: mitochondria