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Enhanced bile acid synthesis in these animals was also confirmed by a 2 - fold increase in plasma marker 7 alpha - hydroxy - 4 - cholesten - 3 - one .
 Chemical: bile acid; Chemical: 7 alpha - hydroxy - 4 - cholesten - 3 - one
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: bile acid; Chemical: 7 alpha - hydroxy - 4 - cholesten - 3 - one