4617
Two promoters were identified by S1 nuclease mapping : P1 , which lies about 72 bp upstream from the structural gene ; and P2 , which lies about 35 bp upstream .
 GENE: S1 nuclease
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: S1 nuclease 
Answer:
 GENE: S1 nuclease