1929 Ottawa sewer explosion
{'<entity_0>': '1929 Ottawa sewer explosion', '<entity_1>': 'Ottawa', '<entity_2>': '29 May 1929', '<entity_3>': 'disaster', '<entity_4>': 'Canada'}
[['1929 Ottawa sewer explosion', 'country', 'Canada'], ['1929 Ottawa sewer explosion', 'location', 'Ottawa'], ['1929 Ottawa sewer explosion', 'point in time', '29 May 1929'], ['1929 Ottawa sewer explosion', 'instance of', 'disaster'], ['1929 Ottawa sewer explosion', 'start time', '29 May 1929'], ['1929 Ottawa sewer explosion', 'end time', '29 May 1929']]
On <entity_2>, a series of <entity_0> of <entity_1>, <entity_4>, killed one person. The <entity_1> Gas Company vehemently insisted that the <entity_3> could not have been caused by its lines.
['disaster']