25350
CP addition prevented freeze - induced denaturation and oxidation in all extracted proteins , as revealed by significant increases in reactive sulphydryl groups ( p < 0 . 0001 ) , and a decrease in the formation of carbonyl groups ( p < 0 . 0001 ) .
 Chemical: sulphydryl; Chemical: carbonyl
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: sulphydryl, carbonyl 
Answer:
 Chemical: sulphydryl; Chemical: carbonyl