9115
Extracellular MDA was quantified in microdialysates collected from the prefrontal cortex of rats exposed , 6h / day for ten days , to 1000ppm of the solvents ( except for n - butylbenzene , generated at 830ppm ) in inhalation chambers .
 Chemical: MDA; Chemical: n - butylbenzene
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: MDA; Chemical: n - butylbenzene