23679
Antithrombotic activity of a newly synthesized coumarin derivative 3 - ( 5 - hydroxy - 2 , 2 - dimethyl - chroman - 6 - yl ) - N - { 2 - [ 3 - ( 5 - hydroxy - 2 , 2 - dimethyl - chroman - 6 - yl ) - propionylamino ] - ethyl } - propionamide .
 Chemical: coumarin; Chemical: 3 - ( 5 - hydroxy - 2 , 2 - dimethyl - chroman - 6 - yl ) - N - { 2 - [ 3 - ( 5 - hydroxy - 2 , 2 - dimethyl - chroman - 6 - yl ) - propionylamino ] - ethyl } - propionamide
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: coumarin, 3 - ( 5 - hydroxy - 2 , 2 - dimethyl - chroman - 6 - yl ) - N - { 2 - [ 3 - ( 5 - hydroxy - 2 , 2 - dimethyl - chroman - 6 - yl ) - propionylamino ] - ethyl } - propionamide 
Answer:
 Chemical: coumarin; Chemical: 3 - ( 5 - hydroxy - 2 , 2 - dimethyl - chroman - 6 - yl ) - N - { 2 - [ 3 - ( 5 - hydroxy - 2 , 2 - dimethyl - chroman - 6 - yl ) - propionylamino ] - ethyl } - propionamide