At 1731 on 21 Apr 2021

#cloud #clouds #cloudcatcher #cloudwatching @ Changi, Singapore https://t.co/fTXoS6aY8g
East Region
[{'url': 'https://t.co/fTXoS6aY8g', 'expanded_url': 'https://www.instagram.com/p/CN7Hostnr-U/?igshid=1roroaynggg2m', 'display_url': 'instagram.com/p/CN7Hostnr-U/…', 'indices': [88, 111]}]
CHANGI AIRPORT
#cloud #clouds #cloudcatcher #cloudwatching
1731 21 apr 2021 cloud clouds cloudcatcher cloudwatching changi singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to a maintenance report feedback for a public flat house."},
    ]

The given Twitter post does not contain any information related to a maintenance report feedback for a public flat house. Therefore, the answer is a JSON object with a "relatedness" of "False", a "type" of "none", and an "explanation" of "This post does not relate to a maintenance report feedback for a public flat house."