Just posted a photo @ Shangri-La Rasa Sentosa Singapore https://t.co/GnYSgRy6BW
Central Region
[{'url': 'https://t.co/GnYSgRy6BW', 'expanded_url': 'https://www.instagram.com/p/CUKigKUJ1BflcKJFMOZdQtfTef9AkC4YcesMu00/?utm_medium=twitter', 'display_url': 'instagram.com/p/CUKigKUJ1Bfl…', 'indices': [56, 79]}]
SENTOSA
just posted photo rasa
posted photo shangrila rasa sentosa singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to a maintenance report feedback for a public flat house."},
    ]

It seems that the post you provided does not contain any information related to a maintenance report feedback for a public flat house in Singapore. The post simply mentions the name of a building, Shangrila Rasa Sentosa Singapore, without providing any context or details that would suggest otherwise. Therefore, the answer is that the post does not relate to a maintenance report feedback for a public flat house.