Okay ! 
Mama and sister follow to BTS event today ! Haha ....... 
enjoyyyyyyy 🙌🏼 https://t.co/xevwCk5JU7
<a href="http://twitter.com/download/iphone" rel="nofollow">Twitter for iPhone</a>
Kranji MRT Station (NS7)
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TURF CLUB
['okay', 'mama', 'sister', 'follow', 'bts', 'event', 'today', 'haha', '...', 'enjoyyyyyyy', '🙌', '🏼', 'https://t.co/xevwck5ju7']
[]
sister follow event today
okay mama sister follow bts event today haha enjoyyyyyyy
  [
    {"relatedness": False, "type": "none", "explanation": "This post is not related to maintenance report feedback for public flat house."},
    ]

The post does not relate to a maintenance report feedback for public flat house. The user is simply expressing their excitement about an event and using the phrase "okay mama sister" as a way of expressing enthusiasm.