28053
The structure - activity relationships revealed that the free hydroxyl group at position 5 and phosphate group at position 7 of the phosphorylated flavonoids are favorable to the inhibition of CEase .
 Chemical: hydroxyl; Chemical: phosphate; Chemical: phosphorylated flavonoids
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: hydroxyl; Chemical: phosphate; Chemical: phosphorylated flavonoids