Black & Blue Tour
{'<entity_0>': 'Black & Blue Tour', '<entity_1>': 'Backstreet Boys', '<entity_2>': 'concert tour', '<entity_3>': 'Black & Blue'}
[['Black & Blue Tour', 'instance of', 'concert tour'], ['Black & Blue Tour', 'based on', 'Black & Blue'], ['Black & Blue Tour', 'performer', 'Backstreet Boys'], ['Black & Blue Tour', 'description', 'concert tour']]
The <entity_0> was a worldwide <entity_2> by the <entity_1> in support of their fourth album <entity_3> and took place in 2001.
['concert tour']