2017 Moscow Sevens
{'<entity_0>': '2017 Moscow Sevens', '<entity_1>': 'Rugby Europe', '<entity_2>': '2017'}
[['2017 Moscow Sevens', 'organizer', 'Rugby Europe'], ['2017 Moscow Sevens', 'point in time', '2017']]
The <entity_0> was the opening tournament of the <entity_2> <entity_1> Grand Prix Series, hosted by Oktyabr Stadium at Moscow.
['sports season']