Just posted a photo @ Changi Airport https://t.co/O6vA9NQkP0
<a href="http://instagram.com" rel="nofollow">Instagram</a>
East Region
[{'url': 'https://t.co/O6vA9NQkP0', 'expanded_url': 'https://www.instagram.com/p/B7Pbs6OhJwkLtbmsBW0-QJ4O-6u80QlNRCtLMY0/?igshid=aomqmr08u2a8', 'display_url': 'instagram.com/p/B7Pbs6OhJwkL…', 'indices': [37, 60]}]
CHANGI AIRPORT
['posted', 'photo', 'changi', 'airport', 'https://t.co/o6va9nqkp0']
['airport']
just posted photo airport
posted photo changi airport
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to a maintenance report for a public flat house."},
    ]

It seems that the post you provided does not match the criteria for a maintenance report feedback to a public flat house. The post is about a photo of Changi Airport, which is not related to any maintenance report or issue related to a public flat house. Therefore, the answer is { "relatedness": False, "type": "none", "explanation": "This post does not relate to a maintenance report for a public flat house." }.