Walking through Chinatown seeing decorations for #CNY2020
#flashbackfriday @ Chinatown Singapore免費食物吃不完的秘密基地 https://t.co/tR576rs5Wn
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Central Region
[{'url': 'https://t.co/tR576rs5Wn', 'expanded_url': 'https://www.instagram.com/p/B7ZPXw-nuoP/?igshid=1bfp7xtyxet2f', 'display_url': 'instagram.com/p/B7ZPXw-nuoP/…', 'indices': [109, 132]}]
CHINATOWN
walking through chinatown seeing #cny     #flashbackfriday chinatown
walking chinatown seeing decorations cny2020 flashbackfriday chinatown singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat house."},
    ]

The given Twitter post does not seem to relate to a maintenance report feedback for a public flat house. The post is about walking in Chinatown and seeing decorations for Chinese New Year, with the hashtag #flashbackfriday. It does not mention any issues or concerns related to maintenance or public housing. Therefore, the answer is a JSON object with "relatedness" set to False, "type" set to "none", and "explanation" set to a brief explanation of why the post is not related to the requested topic.