買菜需要check-in.....不知道幾點起飛？🤪 https://t.co/FZXCRIX2OG
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Giant Hypermarket
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TAMPINES NORTH
checkin
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

It seems that the post does not relate to a maintenance report feedback to public flat house. The post simply says "checkin" without providing any context or information related to maintenance or public housing. Therefore, the answer is "False" for the "relatedness" field, and the "type" field is set to "none" since it is not possible to determine the type of the post based on the given text. The "explanation" field is empty since there is no additional information to provide.