I'm at Piedra Negra in Singapore https://t.co/uAdWajsv6R
Central Region
[{'url': 'https://t.co/uAdWajsv6R', 'expanded_url': 'https://www.swarmapp.com/c/gjVPjsnJPEn', 'display_url': 'swarmapp.com/c/gjVPjsnJPEn', 'indices': [33, 56]}]
KAMPONG GLAM
["i'm", 'piedra', 'negra', 'singapore', 'https://t.co/uadwajsv6r']
[]
piedra negra singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance reports."},
    ]

It seems that the tweet "piedra negra singapore" is not related to a maintenance report feedback for a public flat house. "Piedra negra" is a Spanish term that means "black stone," and it is unlikely that it refers to a maintenance issue in a public housing complex. Therefore, the answer is that the post does not relate to a maintenance report feedback for a public flat house.