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The cells were treated with 0 . 25 micro g / mL MMC and 28 micro g / mL CP as alone and cotreated with 13 + 0 . 25 , 26 + 0 . 25 , and 52 + 0 . 25 micro g / mL 4 - thujanol + MMC and with 13 + 28 , 26 + 28 , and 52 + 28 micro g / mL 4 - thujanol + CP as a mixture .
 Chemical: MMC; Chemical: 4 - thujanol; Chemical: MMC; Chemical: 4 - thujanol
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: MMC; Chemical: 4 - thujanol; Chemical: MMC; Chemical: 4 - thujanol