This is not called salmon sushi. This is called salmon carpaccio. Extremely thinly sliced fish. @ Sushiro https://t.co/ktuPX9adeW
North Region
[{'url': 'https://t.co/ktuPX9adeW', 'expanded_url': 'https://www.instagram.com/p/CQkpPaHsfFRcp8njY9EFJn8xAyNz2SYwzH8Kd80/?utm_medium=twitter', 'display_url': 'instagram.com/p/CQkpPaHsfFRc…', 'indices': [106, 129]}]
WOODLANDS REGIONAL CENTRE
['called', 'salmon', 'sushi', 'called', 'salmon', 'carpaccio', 'extremely', 'thinly', 'sliced', 'fish', 'sushiro', 'https://t.co/ktupx9adew']
[]
this salmon this salmon extremely thinly sliced fish
called salmon sushi called salmon carpaccio extremely thinly sliced fish sushiro
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat house."},
    ]

The given Twitter post does not seem to relate to a maintenance report feedback for a public flat house. The post mentions "salmon sushi" and "salmon carpaccio," which are dishes made with thinly sliced fish, but they are not related to any maintenance issues or feedback for a public flat house. Therefore, the answer is a JSON object with "relatedness" set to False, "type" set to "none," and "explanation" set to a short explanation that the post is not related to maintenance report feedback for public flat house.