4627
17 beta - Estradiol ( E2 ) and ESR1 - selective agonist PPT , but not ESR2 - selective agonist DPN , induced a rapid increase on total [ (3) H ] - inositol phosphate accumulation in the hippocampus from both rats .
 Chemical: 17 beta - Estradiol; Chemical: PPT; Chemical: DPN; Chemical: [ (3) H ] - inositol phosphate
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: 17 beta - Estradiol, PPT, DPN, [ (3) H ] - inositol phosphate 
Answer:
 Chemical: 17 beta - Estradiol; Chemical: PPT; Chemical: DPN; Chemical: [ (3) H ] - inositol phosphate