No pain, no gain. #SNAPS #Papapawis 
#050420 @ Singapore https://t.co/HDYlbEovrq
<a href="http://instagram.com" rel="nofollow">Instagram</a>
Central Region
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MARINA CENTRE
['pain', 'gain', '#snaps', '#papapawis', '#050420', 'singapore', 'https://t.co/hdylbeovrq']
['gain', 'gain', 'pain', 'gain', 'pain', 'pain']
pain gain #snaps #papapawis #      
pain gain snaps papapawis 50420 singapore
  [
    {"relatedness": False, "type": "none", "explanation": "This post does not relate to a maintenance report feedback for a public flat in Singapore."},
    ]

It seems that the post you provided does not contain any information related to a maintenance report feedback for a public flat in Singapore. The term "pain gain" and "papapawis" do not appear to be related to any specific issue or location, and the mention of a block number or street is also absent. Therefore, the answer is that the post does not relate to a maintenance report feedback for a public flat in Singapore.