ท้องฟ้าแจ่มใส แดดเปรี้ยง (@ Terminal 4 - @changiairport in Singapore) https://t.co/AVZmMHPvy4
<a href="http://foursquare.com" rel="nofollow">Foursquare</a>
East Region
[{'url': 'https://t.co/AVZmMHPvy4', 'expanded_url': 'https://www.swarmapp.com/c/28UClIeuKBi', 'display_url': 'swarmapp.com/c/28UClIeuKBi', 'indices': [70, 93]}]
CHANGI AIRPORT
terminal @changiairport
terminal 4 singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

It seems that the Twitter post "terminal 4 singapore" does not relate to a maintenance report feedback to public flat house. It is possible that the user is simply mentioning the location Terminal 4 in Singapore, which is a transportation hub.