2915
In addition , we dated a striking Paleolithic male lineage expansion to 41 , 000 - 52 , 000 yr ago and the node representing the major European Y lineage , R1b , to 4000 - 13 , 000 yr ago , supporting a Neolithic origin for these modern European Y chromosomes .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None