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Group I ( control group ) was given saline ( 1 ml / kg body weight ( b . w . ) , 0 . 85 % NaCl ) and dimethyl sulfoxide ( 1 ml / kg b . w . ) ; group II was treated with CCl4 ( 1 ml / kg b . w . intraperitoneally ) ; groups III and IV were administered with CCl4 and after 48 h with S . asper n - hexane extract ( SHE ; 100 and 200 mg / kg b . w . ) .
 Chemical: NaCl; Chemical: dimethyl sulfoxide; Chemical: CCl4; Chemical: CCl4; Chemical: n - hexane
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: NaCl; Chemical: dimethyl sulfoxide; Chemical: CCl4; Chemical: CCl4; Chemical: n - hexane