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In chemico evaluation of prohapten skin sensitizers : behavior of 2 - methoxy - 4 - ( (1) (3) C ) methylphenol in the peroxidase peptide reactivity assay ( PPRA ) as an alternative to animal testing .
 Chemical: 2 - methoxy - 4 - ( (1) (3) C ) methylphenol
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: 2 - methoxy - 4 - ( (1) (3) C ) methylphenol