最近シンガポールに来ていなかったので初JEWEL https://t.co/GE49vcazLV
<a href="http://twitter.com/download/android" rel="nofollow">Twitter for Android</a>
Jewel Changi Airport
[]
CHANGI AIRPORT
jewel
jewel
  [
    {"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 a public flat house. The word "jewel" does not provide any context or information that suggests otherwise. Therefore, the answer is that the post does not relate to this category.