I'm at Challenger in Singapore https://t.co/RGaQA1DTjF
<a href="http://foursquare.com" rel="nofollow">Foursquare</a>
Central Region
[{'url': 'https://t.co/RGaQA1DTjF', 'expanded_url': 'https://www.swarmapp.com/c/fjEE18VUNxV', 'display_url': 'swarmapp.com/c/fjEE18VUNxV', 'indices': [31, 54]}]
CITY HALL
["i'm", 'challenger', 'singapore', 'https://t.co/rgaqa1dtjf']
[]
challenger
challenger 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 "challenger singapore" does not provide any context or information that suggests otherwise. Therefore, the answer is "relatedness": False and "type": "none".