1958 Pontypool by-election
{'<entity_0>': '1958 Pontypool by-election', '<entity_1>': '1958'}
[['1958 Pontypool by-election', 'point in time', '1958']]
The <entity_0> was held on <entity_1> after the incumbent Labour MP, Granville West was elevated to a life peerage.
['by-election']