1734
This complex localizes to DSBs within 30 minutes after cellular exposure to ionizing radiation ( IR ) and is observed in brightly staining nuclear foci after a longer period of time .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities:  
Answer:
 None