49824
In 1974 , while still in school , Bennett was convicted of murdering Inspector William Elliott , a 49-year-old police officer in the Royal Ulster Constabulary during an Official IRA bank robbery at the Ulster Bank in The Diamond shopping area at Rathcoole , close to his Merville Garden Village home , on 6 September 1974 .
 person: Bennett; organization: Official IRA
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: Bennett, Official IRA 
Answer:
 person: Bennett; organization: Official IRA