Booked slots to get my vaccination! @ Singapore https://t.co/iWfUIrBF4t
Central Region
[{'url': 'https://t.co/iWfUIrBF4t', 'expanded_url': 'https://www.instagram.com/p/CMQqn_rry1H/?igshid=1d6i2uhwqqmqe', 'display_url': 'instagram.com/p/CMQqn_rry1H/…', 'indices': [48, 71]}]
MARINA CENTRE
['booked', 'slot', 'get', 'vaccination', 'singapore', 'https://t.co/iwfuirbf4t']
[]
booked vaccination
booked slots get vaccination singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat houses."},
    ]

The given Twitter post does not seem to be related to a maintenance report feedback for public flat houses in Singapore. The post mentions "booked slots get vaccination singapore", which does not seem to be a maintenance-related issue. Therefore, the answer is a JSON object with "relatedness" set to False, "type" set to "none", and "explanation" set to a short explanation indicating that the post is not related to maintenance report feedback for public flat houses.