13023
Antibacterial activity of Veronica montana L . extract and of protocatechuic acid incorporated in a food system .
 Chemical: protocatechuic acid
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: protocatechuic acid 
Answer:
 Chemical: protocatechuic acid