HOI https://t.co/6Yi1BhCJYr
Neraka
[{'url': 'https://t.co/6Yi1BhCJYr', 'expanded_url': 'https://twitter.com/riegulus/status/1328319111034662912', 'display_url': 'twitter.com/riegulus/statu…', 'indices': [4, 27]}]
SIMEI
hoi
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

Note: Since the post is just a simple greeting ("hoi"), it does not provide any information that could be related to a maintenance report feedback for a public flat house. Therefore, the answer is that the post does not relate to such a report.