Hai
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40th Bn. Singapore Armoured Regiment (40 SAR)
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MURAI
hai
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

Note: Since the post only contains a single word "hai", it does not provide any information that could be used to determine if it relates to a maintenance report feedback for a public flat house. Therefore, the answer is "False" for both "relatedness" and "type", and the explanation is a brief statement indicating that the post is not related to the requested topic.