1544
Chrysin , apigenin , and luteolin are flavones that differ in their number of hydroxyl groups in the B ring .
 Chemical: Chrysin; Chemical: apigenin; Chemical: luteolin; Chemical: flavones; Chemical: hydroxyl
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: Chrysin; Chemical: apigenin; Chemical: luteolin; Chemical: flavones; Chemical: hydroxyl