I'm at Chek Jawa Coastal Boardwalk in Singapore https://t.co/rZnUpJx0sn
East Region
[{'url': 'https://t.co/rZnUpJx0sn', 'expanded_url': 'https://www.swarmapp.com/c/d42pyBCnOUb', 'display_url': 'swarmapp.com/c/d42pyBCnOUb', 'indices': [48, 71]}]
NORTH-EASTERN ISLANDS
["i'm", 'chek', 'jawa', 'coastal', 'boardwalk', 'singapore', 'https://t.co/rznupjx0sn']
[]
coastal boardwalk
chek jawa coastal boardwalk singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat houses."},
    ]

The given Twitter post does not relate to a maintenance report feedback to public flat houses in Singapore. The post mentions "chek jawa coastal boardwalk singapore", which is a location in Singapore, but it does not mention any issues or concerns related to maintenance or facilities in public flat houses. Therefore, the answer is "False" for the "relatedness" field, and the "type" field is set to "none" because the post does not belong to any of the categories mentioned in the question. The "explanation" field provides a brief explanation for why the post is not related to the given topic.