5566
In early 2009 , problems with Chinese drywall imported into the United States after Hurricane Katrina were attributed to pyrite oxidation , followed by microbial sulfate reduction which released hydrogen sulfide gas .
 location: United States
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: United States