I'm at National Dental Centre in Singapore https://t.co/O5nLaTTyxN
<a href="http://foursquare.com" rel="nofollow">Foursquare</a>
Central Region
[{'url': 'https://t.co/O5nLaTTyxN', 'expanded_url': 'https://www.swarmapp.com/c/kt1QwfBm3Xi', 'display_url': 'swarmapp.com/c/kt1QwfBm3Xi', 'indices': [43, 66]}]
SINGAPORE GENERAL HOSPITAL
["i'm", 'national', 'dental', 'centre', 'singapore', 'https://t.co/o5nlattyxn']
[]
national dental
national dental centre singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

It seems that the Twitter post you provided does not relate to a maintenance report feedback to public flat house in Singapore. The term "national dental centre singapore" does not appear to be associated with any such report or feedback. Therefore, the answer is "False" for the relatedness and "none" for the type, along with a brief explanation that it is not related to public housing or maintenance report feedback.