1950 NFL season
{'<entity_0>': 'National Football League', '<entity_1>': '1950 NFL season', '<entity_2>': 'sports season', '<entity_3>': '1950'}
[['1950 NFL season', 'point in time', '1950'], ['1950 NFL season', 'organizer', 'National Football League'], ['1950 NFL season', 'instance of', 'sports season'], ['1950 NFL season', 'sports season of league or competition', 'National Football League']]
The <entity_1> was the 31st <entity_2> of the <entity_0>. The merged league briefly flirted with the name "National-American Football League", but restored the name "<entity_0>" a few months later on <entity_3>.
['sports season']