mark in Singapore https://t.co/OfnM9FJ8gM
<a href="http://twitter.com/download/iphone" rel="nofollow">Twitter for iPhone</a>
East Coast Park Area H
[]
XILIN
['mark', 'singapore', 'https://t.co/ofnm9fj8gm']
[]
mark
mark singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the Twitter post does not relate to a maintenance report feedback to a public flat house. The post simply mentions the word "mark singapore" without any context or information that would suggest otherwise. Therefore, the answer is "relatedness": False and "type": "none".