1990 WTA Tour
{'<entity_0>': '1990', '<entity_1>': '1990 WTA Tour', '<entity_2>': 'WTA Tour', '<entity_3>': 'tennis'}
[['1990 WTA Tour', 'point in time', '1990'], ['1990 WTA Tour', 'sport', 'tennis'], ['1990 WTA Tour', 'sports season of league or competition', 'WTA Tour']]
The <entity_1> (officially titled <entity_0> Kraft General Foods World Tour after its sponsor) was the elite professional <entity_3> circuit organized by the Women's Tennis Association (WTA) for the <entity_0> <entity_3> season. The <entity_1> calendar comprised the four Grand Slam tournaments, the <entity_2> Championships and the WTA Tier I, Tier II, Tier III, Tier IV and Tier V events.
['tennis tour edition']