East Coast で初めてオッターファミリーに出会った！ぷかぷか泳いでる姿も可愛かった☺️ https://t.co/CLPWbPeXqZ
East Coast Park
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SIGLAP
east coast
east coast
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the post does not relate to a maintenance report feedback to a public flat house. The term "east coast" does not provide any context or information that would suggest otherwise. Therefore, the answer is "False" for the "relatedness" field, and the "type" field is set to "none" because the post does not fit into any other category. The "explanation" field contains a brief explanation of why the post does not relate to the given topic.