11311
Evolution of novel tricyclic CRTh2 receptor antagonists from a ( E ) - 2 - cyano - 3 - ( 1H - indol - 3 - yl ) acrylamide scaffold .
 Chemical: ( E ) - 2 - cyano - 3 - ( 1H - indol - 3 - yl ) acrylamide
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: ( E ) - 2 - cyano - 3 - ( 1H - indol - 3 - yl ) acrylamide