Pre-War Cars Sell for Roaring Numbers at 2021's First Major Auction https://t.co/QtpDgIS76E
North-East Region
[{'url': 'https://t.co/QtpDgIS76E', 'expanded_url': 'http://dlvr.it/S0PD9h', 'display_url': 'dlvr.it/S0PD9h', 'indices': [68, 91]}]
SERANGOON GARDEN
['pre-war', 'car', 'sell', 'roaring', 'number', '2021', 'first', 'major', 'auction', 'https://t.co/qtpdgis76e']
['major', 'auction']
sell roaring first major auction
prewar cars sell roaring numbers 2021 first major auction
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat houses."},
    ]

The given Twitter post does not relate to a maintenance report feedback for public flat houses. The post is about the sale of pre-war cars and their popularity in 2021, which has nothing to do with maintenance reports or public flat houses. Therefore, the answer is a JSON object with "relatedness" set to False, "type" set to "none", and "explanation" set to a short explanation of why the post is not related to the requested topic.