@SG_SHINeeWORLD 🥳🗝💎#HappyKEYDay_SG https://t.co/QwbNyeWQhU
Artea
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@sg shineeworld #happykeyday sg
happykeyday sg
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

It seems that the post does not relate to a maintenance report feedback to public flat house. The term "happykeyday sg" does not provide any context or information that suggests otherwise. Therefore, the answer is that the post does not relate to this category.