14126
Incubations of 12 - OH - NVP with the soluble fraction from a 9 , 000g centrifugation ( S9 ) of rat or human skin homogenate in the presence of 3 ' - phosphoadenosine - 5 ' - phosphosulfate ( PAPS ) produced extensive covalent binding , but no covalent binding was detected with mouse skin S9 , which suggests that the reason mice do not develop a rash is that they lack the required sulfotransferase .
 Chemical: 12 - OH - NVP; Chemical: 3 ' - phosphoadenosine - 5 ' - phosphosulfate; Chemical: PAPS
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: 12 - OH - NVP; Chemical: 3 ' - phosphoadenosine - 5 ' - phosphosulfate; Chemical: PAPS