16938
Synthesis and NMR studies of novel chromone - 2 - carboxamide derivatives .
 Chemical: chromone - 2 - carboxamide
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: chromone - 2 - carboxamide