I'm at DON DON DONKI in River Valley, Singapore https://t.co/QoKXxcs73T
<a href="http://foursquare.com" rel="nofollow">Foursquare</a>
Central Region
[{'url': 'https://t.co/QoKXxcs73T', 'expanded_url': 'https://www.swarmapp.com/c/8Fwvsey6DbE', 'display_url': 'swarmapp.com/c/8Fwvsey6DbE', 'indices': [48, 71]}]
CLARKE QUAY
["i'm", 'donki', 'river', 'valley', 'singapore', 'https://t.co/qokxxcs73t']
[]
river valley
donki river valley singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance reports."},
    ]

It seems that the tweet "donki river valley singapore" is not related to a maintenance report feedback for a public flat house. It is possible that the user is simply mentioning the location of the river valley in Singapore, or sharing their personal experience or opinion about the area.