Yeah....how come? @ Singapore Yishun https://t.co/yOWMVPjITg
North Region
[{'url': 'https://t.co/yOWMVPjITg', 'expanded_url': 'https://www.instagram.com/p/CVIRj4-B1bo/?utm_medium=twitter', 'display_url': 'instagram.com/p/CVIRj4-B1bo/…', 'indices': [37, 60]}]
YISHUN SOUTH
['yeah', '...', 'come', 'singapore', 'yishun', 'https://t.co/yowmvpjitg']
[]
yeah come
yeah come singapore yishun
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the Twitter post "yeah come singapore yishun" does not relate to a maintenance report feedback to public flat house. Yishun is a town in Singapore, but it is not a specific block or street, and it does not mention any maintenance issues or requests for fixing. Therefore, the answer is that the post does not relate to a maintenance report feedback to public flat house.