The Mallard book is the only thing I bought https://t.co/WOR56l5kCE
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Books Kinokuniya 紀伊國屋書店
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BOULEVARD
['mallard', 'book', 'thing', 'bought', 'https://t.co/wor56l5kce']
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mallard book only thing bought
mallard book thing bought
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to maintenance report feedback for public flat house."},
    ]

It seems that the post does not mention anything related to maintenance report feedback for public flat house. The post simply mentions "mallard book thing bought" and does not provide any information that would suggest otherwise. Therefore, the answer is that the post does not relate to maintenance report feedback for public flat house.