1st Dose 💉
 #moderna #covidvacccine #singapore #covid_19 @ Changi Airport T4 https://t.co/l4jxVP9Tan
Central Region
[{'url': 'https://t.co/l4jxVP9Tan', 'expanded_url': 'https://www.instagram.com/p/CPdOy1tB620/?utm_medium=twitter', 'display_url': 'instagram.com/p/CPdOy1tB620/…', 'indices': [77, 100]}]
MARINA CENTRE
['1st', 'dose', '💉', '#moderna', '#covidvacccine', '#singapore', '#covid_19', 'changi', 'airport', 't4', 'https://t.co/l4jxvp9tan']
['airport']
dose #moderna #covidvacccine #singapore #covid    airport
1st dose moderna covidvacccine singapore covid 19 changi airport t4
  [
    {"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 mentions the 1st dose of Moderna COVID vaccine in Singapore, which is a health-related topic, but it does not mention any maintenance issue or feedback related to public housing. Therefore, the answer is that the post does not relate to a maintenance report feedback for public flat house.