Mandatory potrait! 🗺📷 @ Jewel Changi Airport https://t.co/yIuBgXjqgn
<a href="http://instagram.com" rel="nofollow">Instagram</a>
East Region
[{'url': 'https://t.co/yIuBgXjqgn', 'expanded_url': 'https://www.instagram.com/p/B62j8cNAncI/?igshid=19y7s1d2bdlvu', 'display_url': 'instagram.com/p/B62j8cNAncI/…', 'indices': [45, 68]}]
CHANGI AIRPORT
['mandatory', 'potrait', '🗺', '📷', 'jewel', 'changi', 'airport', 'https://t.co/yiubgxjqgn']
['airport']
mandatory jewel airport
mandatory potrait jewel changi airport
  [
    {"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 to public flat house. The post mentions "mandatory portrait" and "Changi Airport", which do not have any connection to 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.