2555
All of the newly acquired proviruses identified in mosaic founder SWR / J - RF / J mice that could be transmitted through the germ line were also present in somatic tissues , demonstrating that viral integration occurred before the germ line was set aside from the somatic lineages .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None