53414
During pregnancy , DHEA-S is metabolized into the sulfates of 16α - hydroxy-DHEA and 15α - hydroxy-DHEA in the fetal liver as intermediates in the production of the estrogens estriol and estetrol , respectively .
 animal: fetal
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: fetal 
Answer:
 animal: fetal