Good morning Sengkang. 🌼 https://t.co/PL6LMzbUat
<a href="http://twitter.com/download/iphone" rel="nofollow">Twitter for iPhone</a>
High Park Residences
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FERNVALE
good morning
good morning sengkang
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

It seems that the Twitter post "good morning sengkang" does not relate to a maintenance report feedback to public flat house. Sengkang is a planning area in Singapore, and it is not a specific block or street where maintenance reports are typically filed. Therefore, the post does not match any of the categories in the question.