At 2149 on 18 Apr 2021

The sound of nature after the rain. @ Chestnut Nature Park https://t.co/nJp8SUfVHx
North Region
[{'url': 'https://t.co/nJp8SUfVHx', 'expanded_url': 'https://www.instagram.com/p/CNz0_VWns-n/?igshid=8dsbe5s8hdkx', 'display_url': 'instagram.com/p/CNz0_VWns-n/…', 'indices': [83, 106]}]
CENTRAL WATER CATCHMENT
['2149', '18', 'apr', '2021', 'sound', 'nature', 'rain', 'chestnut', 'nature', 'park', 'https://t.co/njp8sufvhx']
[]
sound nature after rain chestnut nature park
2149 18 apr 2021 sound nature rain chestnut nature park
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to a maintenance report feedback for a public flat house."},
    ]

The given Twitter post does not mention anything related to maintenance report feedback for a public flat house. The post simply mentions the sound of nature, rain, and a park, which does not fit the given category. Therefore, the answer is { "relatedness": False, "type": "none", "explanation": "This post does not relate to a maintenance report feedback for a public flat house." }