上班路上看到 F15 战斗机在头顶训练 https://t.co/c2QlB4r6JD
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Ibis Styles Singapore on MacPherson
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JOO SENG
f15
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance."},
    ]

It seems that the Twitter post "f15" does not relate to a maintenance report feedback to a public flat house. The post does not mention any specific issue or facility related to public housing, and therefore it can be classified as "none".