Hello Singapore! https://t.co/uWKDQSIE96
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Singapore Changi Airport (SIN)
[]
CHANGI AIRPORT
hello
hello singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

Note: Since the post is just a simple greeting and does not contain any information related to maintenance report feedback or public housing, the answer is a JSON object with "relatedness" set to "False", "type" set to "none", and "explanation" set to a brief explanation.