17354
beta - Carotene is a carotenoid usually applied in the food industry as a precursor of vitamin A or as a colourant .
 Chemical: beta - Carotene; Chemical: vitamin A
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: beta - Carotene, vitamin A 
Answer:
 Chemical: beta - Carotene; Chemical: vitamin A