Visiting the exhibition by #OPPO at Singapore @ArtSciMuseum 
Nice marketing approach! https://t.co/dsNpKkbO39
ArtScience Museum
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BAYFRONT SUBZONE
['visiting', 'exhibition', '#oppo', 'singapore', '@artscimuseum', 'nice', 'marketing', 'approach', 'https://t.co/dsnpkkbo39']
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visiting exhibition #oppo @artscimuseum nice marketing approach
visiting exhibition oppo singapore nice marketing approach
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat house."},
    ]

The given Twitter post does not relate to a maintenance report feedback to public flat house. The post is about visiting an exhibition in Singapore and the author's opinion on the marketing approach used. Therefore, the post does not fall under any of the categories mentioned in the question.