Question: Who was a famous leader of the IRA who fought against the group that helped the RIC during the Irish War of Independence? 
Sentence (from "Eoin O'Duffy"): Eoin O'Duffy (Irish: "Eoin Ó Dubhthaigh" ; 30 October 1892 – 30 November 1944) was an Irish political activist, soldier and police commissioner.
Relevant evidence: No