27304
Mechanistically , a direct , contact - dependent transfer of stearoyl derivatives from the particle matrix to the urothelial membrane was found to account for this effect .
 Chemical: stearoyl
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: stearoyl 
Answer:
 Chemical: stearoyl