20618
To determine if the possible " antagonism " is from the competition among or between carboxylates and sulfonates , four different binary mixtures were also studied .
 Chemical: carboxylates; Chemical: sulfonates
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: carboxylates, sulfonates 
Answer:
 Chemical: carboxylates; Chemical: sulfonates