Just posted a photo @ Changi Beach https://t.co/2UljgMp59h
East Region
[{'url': 'https://t.co/2UljgMp59h', 'expanded_url': 'https://www.instagram.com/p/CIqDVPPhDwa/?igshid=u6ebaono87um', 'display_url': 'instagram.com/p/CIqDVPPhDwa/…', 'indices': [35, 58]}]
CHANGI AIRPORT
['posted', 'photo', 'changi', 'beach', 'https://t.co/2uljgmp59h']
['beach']
just posted photo beach
posted photo changi beach
  [
    {"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 mention anything related to maintenance report feedback for a public flat house. The post only mentions a photo of Changi Beach, which is a popular tourist destination in Singapore. Therefore, the answer is that the post does not relate to a maintenance report feedback for a public flat house.