Lego Trains
{'<entity_0>': 'Lego Trains', '<entity_1>': 'Lego City', '<entity_2>': 'train'}
[['Lego Trains', 'main subject', 'train'], ['Lego Trains', 'part of', 'Lego City']]
<entity_0> is a product range and theme of the construction toy Lego, which incorporates buildable <entity_2> sets. The <entity_0> theme became a sub-theme of <entity_1> in 2006.
['Lego theme', 'toy train']