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Vitamin A or retinol is arguably the most multifunctional vitamin in the human body as it is essential from embryogenesis to adulthood .
 Chemical: Vitamin A; Chemical: retinol; Chemical: vitamin
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: Vitamin A; Chemical: retinol; Chemical: vitamin