@ah_bua lock it up!
North Region
[]
WOODLANDS REGIONAL CENTRE
['@ah_bua', 'lock']
[]
@ah bua lock
lock
  [
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance issues."},
    ]

It seems that the post does not relate to a maintenance report feedback to public flat house. The word "lock" is not specific to any particular issue or category, and could potentially be related to a variety of things. Without more context or information, it is difficult to provide a more specific answer.