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The cytotoxic activity of the encapsulated cyclic dipeptides was tested against HeLa , low folate HeLa and MCF - 7 cells and found to have limited improvement in activity .
 Chemical: cyclic dipeptides; Chemical: folate
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: cyclic dipeptides; Chemical: folate