Interesting to know when a chat group I joined suddenly become quiet in the past few weeks. Found out they created a new group, without me. https://t.co/Nv2YNQqrar
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Gate F31
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CHANGI AIRPORT
['interesting', 'know', 'chat', 'group', 'joined', 'suddenly', 'become', 'quiet', 'past', 'week', 'found', 'created', 'new', 'group', 'without', 'https://t.co/nv2ynqqrar']
['found', 'found', 'interesting', 'joined', 'quiet', 'found', 'quiet', 'suddenly']
interesting know when chat group suddenly become quiet past found they group without
interesting know chat group joined suddenly become quiet past weeks found created new group without
  [
    {"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 mentions a chat group that suddenly became quiet, and the author created a new group without any further context or information related to maintenance reports or public flats. Therefore, the post does not fit into any of the categories mentioned in the question.