Just posted a photo @ Robertson Walk, Singapore https://t.co/9Xt6KhqKnC
Central Region
[{'url': 'https://t.co/9Xt6KhqKnC', 'expanded_url': 'https://www.instagram.com/p/CKHesRXhhkS/?igshid=1k6ypj6zedpmy', 'display_url': 'instagram.com/p/CKHesRXhhkS/…', 'indices': [48, 71]}]
ROBERTSON QUAY
['posted', 'photo', 'robertson', 'walk', 'singapore', 'https://t.co/9xt6khqknc']
[]
just posted photo walk
posted photo robertson walk 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 does not contain any information related to a maintenance report feedback for a public flat house in Singapore. The post only mentions "posted photo Robertson Walk 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.