Just posted a photo @ Best Denki @ Takashimaya https://t.co/oBDS5OOxrE
Central Region
[{'url': 'https://t.co/oBDS5OOxrE', 'expanded_url': 'https://www.instagram.com/p/CW4xumhPKIs/?utm_medium=twitter', 'display_url': 'instagram.com/p/CW4xumhPKIs/…', 'indices': [47, 70]}]
BOULEVARD
['posted', 'photo', 'best', 'denki', 'takashimaya', 'https://t.co/obds5ooxre']
[]
just posted photo best
posted photo best denki takashimaya
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to a maintenance report feedback for a public flat house."},
    ]

The provided Twitter post does not mention any information related to a maintenance report feedback for a public flat house. The post simply shows a photo of a shopping mall, which does not align with the given category. Therefore, the answer is a JSON object with "relatedness" set to False, "type" set to "none", and "explanation" set to a brief explanation that the post does not relate to the given category.