17333
For methyl caffeate , the maximum elongation of the induction period was observed in the presence of more than two equivalents of the thiol , whereas the maximum effect on the activity of methyl dihydrocaffeate was observed in the presence of more than three equivalents of the thiol .
 Chemical: methyl caffeate; Chemical: thiol; Chemical: methyl dihydrocaffeate; Chemical: thiol
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: methyl caffeate, thiol, methyl dihydrocaffeate, thiol 
Answer:
 Chemical: methyl caffeate; Chemical: thiol; Chemical: methyl dihydrocaffeate; Chemical: thiol