The boss @ Singapore https://t.co/ECtqFJfEap
<a href="http://instagram.com" rel="nofollow">Instagram</a>
Central Region
[{'url': 'https://t.co/ECtqFJfEap', 'expanded_url': 'https://www.instagram.com/p/CDIMtO-lX96OIdAfnym2RGhBMLqiWVzHyYcnZ00/?igshid=doxxx83tl2ng', 'display_url': 'instagram.com/p/CDIMtO-lX96O…', 'indices': [21, 44]}]
MARINA CENTRE
['bos', 'singapore', 'https://t.co/ectqfjfeap']
[]
boss
boss singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback."},
    ]

It seems that the Twitter post does not relate to a maintenance report feedback to public flat house in Singapore. The term "boss Singapore" is not a specific term related to public housing or maintenance reports, and it could be a general term used to refer to a person or entity in Singapore.