6634
Tea products from the purple leaf coloured tea cultivars had levels of TPs , total catechin ( TC ) and antioxidant activities similar to those from the green leaf coloured cultivars , except for teas from the Japanese cultivars that were very low in the assayed parameters .
 Chemical: catechin
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: catechin 
Answer:
 Chemical: catechin