calcium carbide China https://t.co/OuaPfcdUWQ
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calcium carbide china
calcium carbide china
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to a maintenance report feedback for a public flat house."},
    ]

It seems that the post "calcium carbide china" does not relate to a maintenance report feedback for a public flat house. Calcium carbide is a chemical compound used in various industries, including agriculture and manufacturing, but it is not related to maintenance reports for public housing. Therefore, the answer is "relatedness": False, "type": "none", and "explanation": "This post does not relate to a maintenance report feedback for a public flat house."