9523
On the other hand , the addition of the lipid did not seem to produce PhIP by an alternative mechanism because PhIP was formed analogously in both CRN / Phe and CRN / Phe / ON systems as a function of pH , creatinine concentration , phenylalanine concentration , time , temperature , oxygen concentration in the reaction atmosphere , and the addition of different amounts of ammonia .
 Chemical: PhIP; Chemical: PhIP; Chemical: CRN; Chemical: Phe; Chemical: CRN; Chemical: Phe; Chemical: creatinine; Chemical: phenylalanine; Chemical: oxygen; Chemical: ammonia
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: PhIP; Chemical: PhIP; Chemical: CRN; Chemical: Phe; Chemical: CRN; Chemical: Phe; Chemical: creatinine; Chemical: phenylalanine; Chemical: oxygen; Chemical: ammonia