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#SFC修行 

#チャンギ空港
<a href="http://twitter.com/download/iphone" rel="nofollow">Twitter for iPhone</a>
SATS Premier Lounge
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CHANGI AIRPORT
#sfc
1 sfc
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance."},
    ]

It seems that the Twitter post does not relate to a maintenance report feedback to a public flat house. The post simply says "1 sfc" without providing any context or information that would suggest otherwise. Therefore, the answer is that the post does not relate to this category.