Not mandatory but can scan TraceTogether device or hp to check-out. Singapore https://t.co/gWCoWvVQht
Marina Square
[]
MARINA CENTRE
['mandatory', 'scan', 'tracetogether', 'device', 'hp', 'check-out', 'singapore', 'https://t.co/gwcowvvqht']
[]
mandatory scan device
mandatory scan tracetogether device hp checkout singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat houses."},
    ]

The provided Twitter post does not seem to be related to a maintenance report feedback for public flat houses in Singapore. The post mentions "mandatory scan tracetogether device hp checkout singapore", which does not seem to be a maintenance-related issue. Therefore, the answer is "False" for the "relatedness" field, and the "type" field is set to "none" since the post does not belong to any category related to maintenance report feedback for public flat houses. The "explanation" field is left blank since there is no further explanation needed.