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Using cell lines expressing the aforementioned transporters , we showed that the lipophilic AR - 67 lactone form is a substrate for efflux transporters BCRP and MDR1 .
 Chemical: AR - 67; Chemical: lactone
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: AR - 67; Chemical: lactone