8974
The presence of steroid hormones most probably causes the degradation of the Tat2 permease and impairment of tryptophan import .
 Chemical: steroid; Chemical: tryptophan
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: steroid; Chemical: tryptophan