Pfizer Covid Shot Safely Bolsters Antibodies in Younger Kids https://t.co/a3LfEgLQHv
North-East Region
[{'url': 'https://t.co/a3LfEgLQHv', 'expanded_url': 'http://dlvr.it/S7wBrW', 'display_url': 'dlvr.it/S7wBrW', 'indices': [61, 84]}]
SERANGOON GARDEN
['pfizer', 'covid', 'shot', 'safely', 'bolster', 'antibody', 'younger', 'kid', 'https://t.co/a3lfeglqhv']
['bolster', 'shot', 'shot', 'shot', 'shot', 'shot']
covid shot safely younger kids
pfizer covid shot safely bolsters antibodies younger kids
  [
    {"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 safety and efficacy of the COVID-19 vaccine for younger children, and does not mention any issues or concerns related to public housing. Therefore, the answer is a JSON object with "relatedness" set to False, "type" set to "none", and "explanation" set to a short explanation indicating that the post is not related to the requested topic.