I'm at UB. One in Singapore https://t.co/GOUSW4FBty
Central Region
[{'url': 'https://t.co/GOUSW4FBty', 'expanded_url': 'https://www.swarmapp.com/c/c93ccKUO57k', 'display_url': 'swarmapp.com/c/c93ccKUO57k', 'indices': [28, 51]}]
KAMPONG UBI
["i'm", 'ub', 'one', 'singapore', 'https://t.co/gousw4fbty']
[]
ub 1 singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the Twitter post "ub 1 singapore" does not relate to a maintenance report feedback to public flat house. The term "ub 1 singapore" could potentially be a location or a reference to a specific event or topic, but it does not contain any keywords or phrases that indicate it is a maintenance report or feedback related to public housing.