Did you catch it? @ Singapore https://t.co/WlkzGSMaL5
<a href="http://instagram.com" rel="nofollow">Instagram</a>
Central Region
[{'url': 'https://t.co/WlkzGSMaL5', 'expanded_url': 'https://www.instagram.com/p/CBsM218nRnO/?igshid=1xx28c47oaiot', 'display_url': 'instagram.com/p/CBsM218nRnO/…', 'indices': [30, 53]}]
MARINA CENTRE
['catch', 'singapore', 'https://t.co/wlkzgsmal5']
['catch']
catch
catch singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

It seems that the Twitter post "catch singapore" does not relate to a maintenance report feedback to public flat house. The post does not mention any specific issue or problem related to public housing, such as a broken facility, inconvenience, or request for fixing. Therefore, the answer is "relatedness": False.