St Helens North (UK Parliament constituency)
Members of Parliament
Table:
Election	Member	Party

1983	John Evans	Labour

1997	Dave Watts	Labour

2015	Conor McGinn	Labour

Per the details in the tabular data covering 'St Helens North (UK Parliament constituency)' in the 'Members of Parliament' section, draft a brief sentence that explains what the highlighted cells show and format it within the following JSON object {"answer": "YOUR ANSWER"}.