18551
Up to now only two methods , random lysine modification with N - suc - DFO or DFO - Bz - NCS , have been used in clinical studies .
 Chemical: lysine; Chemical: N - suc - DFO; Chemical: DFO - Bz - NCS
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: lysine, N - suc - DFO, DFO - Bz - NCS 
Answer:
 Chemical: lysine; Chemical: N - suc - DFO; Chemical: DFO - Bz - NCS