Hej! https://t.co/SAHMsMB143
IKEA
[]
TAMPINES NORTH
hej
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

Note: Since the post only contains a single word "hej", it does not provide any context or information that could be used to determine if it relates to a maintenance report feedback for a public flat house. Therefore, the answer is "False" for both "relatedness" and "type". The "explanation" field contains a brief explanation for why the post does not meet the criteria.