1969 Newcastle-under-Lyme by-election
{'<entity_0>': '1969 Newcastle-under-Lyme by-election', '<entity_1>': '1969'}
[['1969 Newcastle-under-Lyme by-election', 'point in time', '1969']]
The <entity_0> of <entity_1> was caused by the death of Labour MP Stephen Swingler.
['by-election']