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Further we found stimulation of FAS - expression as a result of epigenetic DNA demethylation that was due to down - regulation of DNMT1 , which was rescued by re - isoprenylation by both geranylgeranyl - pyrophosphate and farnesylpyrophosphate .
 Chemical: geranylgeranyl - pyrophosphate; Chemical: farnesylpyrophosphate
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: geranylgeranyl - pyrophosphate; Chemical: farnesylpyrophosphate