19190
Twenty obese people received four breakfasts following a randomised crossover design consisting of different oils ( virgin olive oil ( VOO ) , sunflower oil ( SFO ) , and a mixed seed oil ( SFO / canola oil ) with added dimethylpolysiloxane ( SOX ) or natural antioxidants from olives ( SOP ) ) , which were subjected to 20 heating cycles .
 Chemical: dimethylpolysiloxane; Chemical: SOX; Chemical: SOP
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: dimethylpolysiloxane; Chemical: SOX; Chemical: SOP