1991 All-Ireland Under-21 Football Championship
{'<entity_0>': '1991 All-Ireland Under-21 Football Championship', '<entity_1>': 'All-Ireland Under 21 Football Championship'}
[['1991 All-Ireland Under-21 Football Championship', 'sports season of league or competition', 'All-Ireland Under 21 Football Championship']]
The <entity_0> was the 28th staging of the <entity_1> since its establishment by the Gaelic Athletic Association in 1964.
['sports season']