I'm at Xin Xing Carrot Cake in Singapore https://t.co/B5vrrDbDRT
East Region
[{'url': 'https://t.co/B5vrrDbDRT', 'expanded_url': 'https://www.swarmapp.com/c/05x2mjyB6f9', 'display_url': 'swarmapp.com/c/05x2mjyB6f9', 'indices': [41, 64]}]
TAMPINES EAST
["i'm", 'xin', 'xing', 'carrot', 'cake', 'singapore', 'https://t.co/b5vrrdbdrt']
[]
carrot cake
xin xing carrot cake singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat house."},
    ]

It seems that the provided Twitter post does not relate to a maintenance report feedback for a public flat house. The post is about a food review of a carrot cake in Singapore, and does not mention any issues or concerns related to public housing. Therefore, the answer is a JSON object with a "relatedness" of False, a "type" of "none", and an "explanation" of a short reason why the post is not related to the requested topic.