I'm at ARC 380 in Singapore https://t.co/1tTUhVQLXi
Central Region
[{'url': 'https://t.co/1tTUhVQLXi', 'expanded_url': 'https://www.swarmapp.com/c/8rh6gGW1pSt', 'display_url': 'swarmapp.com/c/8rh6gGW1pSt', 'indices': [28, 51]}]
LAVENDER
["i'm", 'arc', '380', 'singapore', 'https://t.co/1ttuhvqlxi']
[]
arc 380 singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the Twitter post you provided does not relate to a maintenance report feedback to public flat house in Singapore. The term "arc 380 singapore" does not appear to be a specific reference to any particular maintenance issue or public housing block in Singapore. Therefore, the answer is "relatedness": False.