I'm at River Valley in Singapore https://t.co/oY5J4sP8Yj
<a href="http://foursquare.com" rel="nofollow">Foursquare</a>
Central Region
[{'url': 'https://t.co/oY5J4sP8Yj', 'expanded_url': 'https://www.swarmapp.com/c/dOEZnB4uAIt', 'display_url': 'swarmapp.com/c/dOEZnB4uAIt', 'indices': [33, 56]}]
CHATSWORTH
["i'm", 'river', 'valley', 'singapore', 'https://t.co/oy5j4sp8yj']
[]
river valley
river valley singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance reports."},
    ]

The post "river valley singapore" does not seem to be related to a maintenance report feedback for a public flat house. It is not clear what the post is referring to, as it is a general location name and does not provide any specific information about a maintenance issue or request. Therefore, the answer is "relatedness": False and "type": "none".