27387
Preserving the trans - stilbene structure , a series of 2 - arylbenzofuran and corresponding 3 - arylcoumarin derivatives were synthesized and evaluated as inhibitors of both MAO isoforms , MAO - A and MAO - B .
 Chemical: trans - stilbene; Chemical: 2 - arylbenzofuran; Chemical: 3 - arylcoumarin
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: trans - stilbene; Chemical: 2 - arylbenzofuran; Chemical: 3 - arylcoumarin