7871
Placental growth hormone ( PGH ) , estrogens ( primarily 17 beta - estradiol ) , cortisol , and progesterone have the potential to modulate CYP3A activity .
 Chemical: estrogens; Chemical: 17 beta - estradiol; Chemical: cortisol; Chemical: progesterone
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: estrogens; Chemical: 17 beta - estradiol; Chemical: cortisol; Chemical: progesterone