89581
The United States Environmental Protection Agency classifies dioxane as a probable human carcinogen ( having observed an increased incidence of cancer in controlled animal studies , but not in epidemiological studies of workers using the compound ) , and a known irritant ( with a no-observed-adverse-effects level of 400 milligrams per cubic meter ) at concentrations significantly higher than those found in commercial products .
 organization: United States Environmental Protection Agency
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: United States Environmental Protection Agency 
Answer:
 organization: United States Environmental Protection Agency