Africa's Biggest Drugmaker Pivots to Vaccine in Virus Response https://t.co/3F4tfAiO99
North-East Region
[{'url': 'https://t.co/3F4tfAiO99', 'expanded_url': 'http://dlvr.it/RlMhr0', 'display_url': 'dlvr.it/RlMhr0', 'indices': [63, 86]}]
SERANGOON GARDEN
["africa's", 'biggest', 'drugmaker', 'pivot', 'vaccine', 'virus', 'response', 'https://t.co/3f4tfaio99']
['pivot', 'pivot', 'vaccine', 'virus']
biggest vaccine virus response
africa biggest drugmaker pivots vaccine virus response
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat house."},
    ]

The given Twitter post does not relate to a maintenance report feedback for a public flat house. The post is about Africa's biggest drugmaker pivoting its vaccine virus response, 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 brief explanation of why the post is not related to the requested topic.