Brown and green. https://t.co/oVQ7VIAIg3
Chemperai Trail
[]
CENTRAL WATER CATCHMENT
['brown', 'green', 'https://t.co/ovq7viaig3']
['green', 'green', 'green']
brown green
brown green
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the Twitter post "brown green" does not relate to a maintenance report feedback to a public flat house. The post does not mention any specific issues or facilities related to public housing, and therefore it can be classified as "none".