Omg welcome back after sooo long #shangchi (@ Shaw Theatres - @shawsg in Singapore) https://t.co/Why38SEJaW
West Region
[{'url': 'https://t.co/Why38SEJaW', 'expanded_url': 'https://www.swarmapp.com/c/3lt9Qsf6rh6', 'display_url': 'swarmapp.com/c/3lt9Qsf6rh6', 'indices': [84, 107]}]
CHOA CHU KANG CENTRAL
['omg', 'welcome', 'back', 'sooo', 'long', '#shangchi', 'shaw', 'theatre', '@shawsg', 'singapore', 'https://t.co/why38sejaw']
['long']
welcome back after long #shangchi shaw @shawsg
omg welcome back sooo long shangchi shaw theatres singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat house."},
    ]

The given Twitter post does not seem to be related to a maintenance report feedback for a public flat house. The post simply expresses excitement and enthusiasm for the reopening of a theater in Singapore, and does not mention any issues or concerns related to maintenance or public housing. Therefore, the answer is a JSON object with "relatedness" set to "False", "type" set to "none", and "explanation" set to a brief explanation of why the post is not related to the requested topic.