I'm at Serfing in Singapore, SG https://t.co/tKUKFzzO6y
Central Region
[{'url': 'https://t.co/tKUKFzzO6y', 'expanded_url': 'https://www.swarmapp.com/c/kBJVwKEIQOY', 'display_url': 'swarmapp.com/c/kBJVwKEIQOY', 'indices': [32, 55]}]
BOON KENG
["i'm", 'serfing', 'singapore', 'sg', 'https://t.co/tkukfzzo6y']
[]
serfing singapore sg
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance reports."},
    ]

It seems that the Twitter post "serfing singapore sg" does not relate to a maintenance report feedback to public flat house. The post does not contain any information that suggests it is about maintenance, public housing, or any other relevant topic. Therefore, the answer is "relatedness": False.