Lost World 

コンセプトを把握するまでしばらく時間がかかりそうです https://t.co/w4XTwbJ1R0
<a href="http://twitter.com/download/android" rel="nofollow">Twitter for Android</a>
Cloud Walk
[]
MARINA SOUTH
lost world
lost world
  [
    {"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 public flat house. The term "lost world" does not convey any specific information or context that would suggest otherwise. Therefore, the answer is "False" for the "relatedness" field, and the "type" field is set to "none" because it is not possible to determine the type of the post based on the provided text. The "explanation" field is empty because there is no additional information to provide beyond the initial assessment.