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This study was designed to evaluate the potential effects of puerarin ( PR ) , an effective isoflavonoid compound purified from Pueraria lobata , in treating hepatic fibrosis ( HF ) rats induced by carbon tetrachloride ( CCl ( 4 ) , 2 mL kg ( - 1 ) d ( - 1 ) ) .
 Chemical: puerarin; Chemical: isoflavonoid; Chemical: carbon tetrachloride; Chemical: CCl ( 4 )
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: puerarin; Chemical: isoflavonoid; Chemical: carbon tetrachloride; Chemical: CCl ( 4 )