15773
Fetal guinea pig hippocampi were collected before ( gestational day [ GD52 ] ) and after ( GD65 ) the fetal plasma cortisol surge ( Term ~ GD67 ) and 24 hours after ( GD52 ) and 14 days after ( GD65 ) two repeat courses of maternal sGC ( betamethasone ) treatment ( n = 3 - 4 / gp ) .
 Chemical: cortisol; Chemical: betamethasone
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: cortisol, betamethasone 
Answer:
 Chemical: cortisol; Chemical: betamethasone