Thank you to my Sister for the birthday present delivered to office @ Excel Aerospace https://t.co/NvsOkTujCJ
<a href="http://instagram.com" rel="nofollow">Instagram</a>
North-East Region
[{'url': 'https://t.co/NvsOkTujCJ', 'expanded_url': 'https://www.instagram.com/p/CBkHchqlR-PGqIsIsSSlZSbOHsLj1quvTaaKa40/?igshid=1imwfm8mbaosh', 'display_url': 'instagram.com/p/CBkHchqlR-PG…', 'indices': [86, 109]}]
SERANGOON NORTH IND ESTATE
['thank', 'sister', 'birthday', 'present', 'delivered', 'office', 'excel', 'aerospace', 'https://t.co/nvsoktujcj']
['birthday', 'present', 'excel', 'present', 'excel', 'birthday', 'present', 'excel', 'birthday', 'present', 'excel', 'birthday', 'present', 'excel']
thank sister birthday present office excel
thank sister birthday present delivered office excel aerospace
  [
    {"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 "sister birthday present" and "office excel aerospace", which do not seem to be related to maintenance or public housing. 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.