2017–18 EHF Challenge Cup
{'<entity_0>': 'European Handball Federation', '<entity_1>': '2017–18 EHF Challenge Cup', '<entity_2>': 'handball'}
[['2017–18 EHF Challenge Cup', 'sport', 'handball'], ['2017–18 EHF Challenge Cup', 'organizer', 'European Handball Federation']]
The <entity_1> was the 21st edition of the <entity_0>'s third-tier competition for men's <entity_2> clubs, running from 7 October 2017 to 20 May 2018.
['sports season']