24572
The derivative 1 containing h beta ( 3 ) Phe in place of Phe showed good mu - and delta - receptor affinities ( Ki ( delta ) = 0 . 72 nM ; Ki ( mu ) = 1 . 1 nM ) and antinociceptive activity in vivo together with an increased enzymatic stability in human plasma .
 Chemical: h beta ( 3 ) Phe; Chemical: Phe
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: h beta ( 3 ) Phe, Phe 
Answer:
 Chemical: h beta ( 3 ) Phe; Chemical: Phe