在地鐵上讀 #楊定一博士 的書。楊博士21歲就是美國的MD/PhD，當然是天才人物。我差楊博士好遠好遠，不過年少時就試圖想象及理解時空的無限，我做不到，那是超出我這個宇宙卑微生命的頭腦可以達到的。 https://t.co/cOtOQVBov3
Ang Mo Kio MRT Station (NS16)
[]
CHENG SAN
21 md phd
  [
    {"relatedness": False, "type": "none", "explanation": "The post does not relate to maintenance report feedback for public flat house."},
    ]

Note: The answer is in JSON format as requested, with the following structure:

* "relatedness": a boolean value indicating whether the post relates to the given topic (True or False)
* "type": a string indicating the type of topic the post relates to (e.g. "infrastructure", "vehicle", etc.)
* "explanation": a short explanation of why the post does not relate to the given topic.