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The effects of SFRE both alone and in combination with 5 - FU were evaluated in different human colon cancer cells in terms of cell viability , cytotoxicity , and cell transformation .
 Chemical: 5 - FU
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: 5 - FU