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The aleurone layer had zeaxanthin levels 2 - to 5 - fold higher than lutein among the cereals .
 Chemical: zeaxanthin; Chemical: lutein
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: zeaxanthin; Chemical: lutein