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Henry covered Capitol Hill for Roll Call for eight years , writing that newspaper ’s Heard on the Hill column , and has been a contributing editor at Washingtonian and in 2003 began providing political analysis for The WMAL Morning News and The Chris Core Show on 630 WMAL ( ABC affiliate ) .
 organization: Roll Call
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: Roll Call 
Answer:
 organization: Roll Call