Dinner time. @ Mamam Beach https://t.co/vIiK7ga0hu
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East Region
[{'url': 'https://t.co/vIiK7ga0hu', 'expanded_url': 'https://www.instagram.com/p/B9blcPxnvrt/?igshid=1epxb67y9d8zs', 'display_url': 'instagram.com/p/B9blcPxnvrt/…', 'indices': [27, 50]}]
NORTH-EASTERN ISLANDS
['dinner', 'time', 'mamam', 'beach', 'https://t.co/viik7ga0hu']
['beach', 'dinner', 'time']
dinner time beach
dinner time mamam beach
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to maintenance report feedback for public flat house."},
    ]

It seems that the post does not relate to a maintenance report feedback for a public flat house. The term "mamam beach" does not provide any context or information that would suggest otherwise. Therefore, the answer is that the post does not relate to a maintenance report feedback for a public flat house.