1981 NSWRFL season
{'<entity_0>': '1981 NSWRFL season', '<entity_1>': 'Australia', '<entity_2>': 'rugby', '<entity_3>': '1981'}
[['1981 NSWRFL season', 'sport', 'rugby'], ['1981 NSWRFL season', 'country', 'Australia'], ['1981 NSWRFL season', 'point in time', '1981']]
The <entity_0> was the 74th season of Sydney's professional <entity_2> league football competition, <entity_1>'s first. In <entity_3> the "sin-bin" was introduced to <entity_2> league in <entity_1>, enabling referees to send players from the field for five or ten minute periods for minor or deliberate technical offences.
['sports season']