Covid mRNA Vaccines Are 'Watershed Moment,' Says Merck CEO https://t.co/2UUWuowcah
North-East Region
[{'url': 'https://t.co/2UUWuowcah', 'expanded_url': 'http://dlvr.it/RqWB5L', 'display_url': 'dlvr.it/RqWB5L', 'indices': [59, 82]}]
SERANGOON GARDEN
['covid', 'mrna', 'vaccine', 'watershed', 'moment', 'say', 'merck', 'ceo', 'https://t.co/2uuwuowcah']
['vaccine']
covid watershed moment
covid mrna vaccines watershed moment says merck ceo
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat houses."},
    ]

The given Twitter post does not relate to a maintenance report feedback to public flat houses. The post is about a watershed moment in the development of COVID-19 mRNA vaccines, as stated by the CEO of Merck. Therefore, the post does not fall under any of the categories mentioned in the question.