Welcome back to Singapore
<a href="http://twitter.com/download/android" rel="nofollow">Twitter for Android</a>
Singapore Changi Airport (SIN)
[]
CHANGI AIRPORT
['welcome', 'back', 'singapore']
[]
welcome back
welcome back singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

The provided Twitter post does not seem to be related to a maintenance report feedback to public flat house. The post simply says "welcome back Singapore" and does not mention any specific issue or request related to public housing. Therefore, the answer is "relatedness": False and "type": "none".