3380
RESULTS : We observed positive associations of Parkinson ' s disease with ozone ( odds ratio = 1 . 39 ; 95 % CI : 0 . 98 to 1 . 98 ) and fine particulate matter ( odds ratio = 1 . 34 ; 95 % CI : 0 . 93 to 1 . 93 ) in North Carolina but not in Iowa .
 Disease: Parkinson ' s disease; Chemical: ozone; Chemical: particulate matter
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: Parkinson ' s disease; Chemical: ozone; Chemical: particulate matter