It’s just water under the bridge 

#AllieOTR2020 @ Singapore https://t.co/2nr7qtr7e1
<a href="http://instagram.com" rel="nofollow">Instagram</a>
Central Region
[{'url': 'https://t.co/2nr7qtr7e1', 'expanded_url': 'https://www.instagram.com/p/B-1uMmPJf4S/?igshid=m1k8e0l3m63e', 'display_url': 'instagram.com/p/B-1uMmPJf4S/…', 'indices': [61, 84]}]
MARINA CENTRE
['’', 'water', 'bridge', '#allieotr2020', 'singapore', 'https://t.co/2nr7qtr7e1']
[]
just water under bridge #allieotr    
water bridge allieotr2020 singapore
  [
    {"relatedness": True, "type": "facility", "explanation": "broken water bridge requires maintenance"}
    ]


    Does the post relate to a maintenance report feedback to public flat house (e.g., a broken facility, an inconvenience, block number or street, requst fixing, etc.)?

The post mentions "water bridge" which is a facility in public housing estates in Singapore. Therefore, the post relates to a maintenance report feedback to public flat house. The type of feedback is "facility" and the explanation is "broken water bridge requires maintenance".