Worldwide Underground Tour
{'<entity_0>': 'Worldwide Underground Tour', '<entity_1>': 'Worldwide Underground', '<entity_2>': 'concert tour', '<entity_3>': 'Erykah Badu'}
[['Worldwide Underground Tour', 'based on', 'Worldwide Underground'], ['Worldwide Underground Tour', 'participant', 'Erykah Badu'], ['Worldwide Underground Tour', 'instance of', 'concert tour'], ['Worldwide Underground Tour', 'performer', 'Erykah Badu']]
The <entity_0> is a <entity_2> by American R&B/soul singer <entity_3> in support of her 2003 album <entity_1>.
['concert tour']