Diam diam 包，make a switch... #出前一丁 #greenshellmussels @ Singapore / Singapura / 新加坡 / சிங்கப்பூர் https://t.co/PzfzsbaWun
Central Region
[{'url': 'https://t.co/PzfzsbaWun', 'expanded_url': 'https://www.instagram.com/p/CSjVkx0nFHv/?utm_medium=twitter', 'display_url': 'instagram.com/p/CSjVkx0nFHv/…', 'indices': [98, 121]}]
MARINA CENTRE
make switch #greenshellmussels
diam diam make switch greenshellmussels singapore singapura
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to a maintenance report feedback for a public flat house."},
    ]

It seems that the Twitter post you provided does not mention anything related to maintenance report feedback for a public flat house in Singapore. The phrase "diam diam make switch greenshellmussels singapore singapura" does not contain any keywords or phrases that suggest a maintenance report or feedback for a public flat house. Therefore, the answer is "False" for the question "Does the post relate to a maintenance report feedback to public flat house?"