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Meanwhile , we also detected significantly reduced levels of hydroxyproline ( Hyp ) , type III precollagen ( PCIII ) and collagen I ( Col I ) in the liver tissue of HF rats , whereas the peroxisome proliferator - activated receptor - gamma ( PPAR - gamma ) expression was effectively increased .
 Chemical: hydroxyproline; Chemical: Hyp
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: hydroxyproline; Chemical: Hyp