Hanging out at the gallery. https://t.co/1Yb8ElFno4
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National Gal­lery Singa­pore
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CITY HALL
['hanging', 'gallery', 'https://t.co/1yb8elfno4']
['hanging', 'hanging', 'hanging', 'hanging', 'hanging']
hanging gallery
hanging gallery
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the term "hanging gallery" is not related to any maintenance report feedback for public flats. It's possible that it could be a term used in a different context, but without more information, it's difficult to provide a more specific answer. If you have any additional context or details, please let me know and I'll do my best to help.