13579
Recently , it has been found that the use of Mentha as a pharmaceutical source is based on its phytochemical constituents that have far been identified as tannins , saponins , phenolic acids and flavonoids .
 Chemical: tannins; Chemical: saponins; Chemical: phenolic acids; Chemical: 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: tannins; Chemical: saponins; Chemical: phenolic acids; Chemical: flavonoids