Singapore: 7:19pm: sunset
<a href="http://twitter.com/WorldCities/cities" rel="nofollow">World Cities</a>
North-East Region
[]
SEMBAWANG HILLS
['singapore', '7:19', 'pm', 'sunset']
['sunset', 'sunset']
sunset
singapore 7 19pm sunset
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the Twitter post you provided does not relate to a maintenance report feedback to public flat house in Singapore. The post simply mentions the time of sunset in Singapore, which is not related to any maintenance or housing issues. Therefore, the answer is { "relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues." }.