I'm at The Cave in Singapore https://t.co/nhof8SQ5D0
East Region
[{'url': 'https://t.co/nhof8SQ5D0', 'expanded_url': 'https://www.swarmapp.com/c/3eqqu6X4NIF', 'display_url': 'swarmapp.com/c/3eqqu6X4NIF', 'indices': [29, 52]}]
BEDOK NORTH
["i'm", 'cave', 'singapore', 'https://t.co/nhof8sq5d0']
[]
cave
cave singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance reports."},
    ]

It seems that the Twitter post "cave singapore" does not relate to a maintenance report feedback to a public flat house. It is not clear what the post is referring to, as it is a nonsensical phrase. Therefore, the answer is that the post does not relate to a maintenance report feedback to public flat house.