39721
At a forum at the university during the 2008 presidential election campaign , both John McCain and Barack Obama said that the university should consider reinstating ROTC on campus .
 person: John McCain; person: Barack Obama
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: John McCain, Barack Obama 
Answer:
 person: John McCain; person: Barack Obama