'By Left' or 'By Right'? Bwahahaha.

#SBSTransit #Scania #K230UB @ Singapore https://t.co/C0T1NWbECi
<a href="http://instagram.com" rel="nofollow">Instagram</a>
Central Region
[{'url': 'https://t.co/C0T1NWbECi', 'expanded_url': 'https://www.instagram.com/p/CCgV6_yluBT/?igshid=1qfsd9pii6yfc', 'display_url': 'instagram.com/p/CCgV6_yluBT/…', 'indices': [77, 100]}]
MARINA CENTRE
['left', 'right', 'bwahahaha', '#sbstransit', '#scania', '#k230ub', 'singapore', 'https://t.co/c0t1nwbeci']
[]
left right #sbstransit #scania #k   ub
left right bwahahaha sbstransit scania k230ub singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to maintenance report feedback for public flat house."},
    ]

It seems that the Twitter post you provided does not mention anything related to maintenance report feedback for public flat house. The term "sbstransit" and "Scana" are likely references to transportation companies or vehicles, while "K230ub" could be a specific model of bus or coach. The phrase "left right bwahahaha" is likely a joke or a reaction, and does not provide any information related to maintenance report feedback. Therefore, the answer is that the post does not relate to maintenance report feedback for public flat house.