Been a while since I saw a performance on Singapore island. Here's a minute of Vocalise String Quartet playing Star Wars, in their John Williams' Best Works set! @ The Arts House at The Old Parliament https://t.co/7OJje14eKK
Central Region
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CITY HALL
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been while since performance island here minute vocalise string quartet star their john best works house parliament
since saw performance singapore island minute vocalise string quartet playing star wars john williams best works set arts house old parliament
  [
    {"relatedness": False, "type": "none", "explanation": "Not related to maintenance report feedback for public flat house."},
    ]

The given Twitter post does not seem to be related to a maintenance report feedback for a public flat house. The post mentions a performance in Singapore, a vocal group playing music, and a set of John Williams' best works, but none of these are 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.