チャンギ空港第3ターミナルのgrabピックアップポイントはB1階🚗
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Terminal 3
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CHANGI AIRPORT
3 grab b1
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the post "3 grab b1" does not relate to a maintenance report feedback to a public flat house. It is not clear what this message means or what issue it is referring to. Please provide more context or clarify the message if you would like me to provide a more accurate answer.