I'm at @HeyteaOfficial in Marina, Singapore https://t.co/QWjbfnniN6
Central Region
[{'url': 'https://t.co/QWjbfnniN6', 'expanded_url': 'https://www.swarmapp.com/c/emboiCBFFsR', 'display_url': 'swarmapp.com/c/emboiCBFFsR', 'indices': [44, 67]}]
BAYFRONT SUBZONE
["i'm", '@heyteaofficial', 'marina', 'singapore', 'https://t.co/qwjbfnnin6']
[]
@heyteaofficial marina
marina singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the Twitter post "marina singapore" does not relate to a maintenance report feedback to public flat house. It is possible that the user is simply mentioning the location "Marina Singapore" without any specific context or purpose related to maintenance or public housing.