16658
Since IR3535 ( (R) ) is rapidly and extensively metabolized , and IR3535 ( (R) ) - free acid has a low molecular weight and high water solubility , it is expected that urinary excretion of IR3535 ( (R) ) - free acid and IR3535 ( (R) ) represents the total extent of absorption of IR3535 ( (R) ) in humans .
 Chemical: IR3535; Chemical: IR3535; Chemical: IR3535; Chemical: IR3535; Chemical: IR3535
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: IR3535, IR3535, IR3535, IR3535, IR3535 
Answer:
 Chemical: IR3535; Chemical: IR3535; Chemical: IR3535; Chemical: IR3535; Chemical: IR3535