The Great Outdoors @ Singapore https://t.co/b3cgay4ruY
<a href="http://instagram.com" rel="nofollow">Instagram</a>
Central Region
[{'url': 'https://t.co/b3cgay4ruY', 'expanded_url': 'https://www.instagram.com/p/CBp5tVcn_Kb/?igshid=1qmlu7k9v3yv3', 'display_url': 'instagram.com/p/CBp5tVcn_Kb/…', 'indices': [31, 54]}]
MARINA CENTRE
['great', 'outdoors', 'singapore', 'https://t.co/b3cgay4ruy']
[]
great outdoors
great outdoors singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat houses."},
    ]

It seems that the Twitter post "great outdoors singapore" does not relate to a maintenance report feedback for public flat houses. Therefore, the answer is { "relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat houses." }.