Ooppera alkamassa #gardenofbay https://t.co/XasBPmbaUA
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Xi Yan Shaw
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BOULEVARD
#gardenofbay
ooppera alkamassa gardenofbay
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

It seems that the Twitter post "ooppera alkamassa gardenofbay" does not relate to a maintenance report feedback to a public flat house. The term "alkamassa" does not seem to be a common term in the context of public housing or maintenance reports, and the phrase "gardenofbay" does not provide any additional context that would suggest otherwise. Therefore, the answer is that the post does not relate to a maintenance report feedback to a public flat house.