If your BMW makes this whining sound - the built in PCV (Positive Crankcase Ventilation) system is likely to have developed an issue.

The design calls for the crankcase pressure to be regulated. Each engine model… https://t.co/OGt11I1nRw
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[{'url': 'https://t.co/OGt11I1nRw', 'expanded_url': 'https://www.instagram.com/p/CAE7DKDHJuh/?igshid=13vubmnxv7os9', 'display_url': 'instagram.com/p/CAE7DKDHJuh/…', 'indices': [215, 238]}]
KAKI BUKIT
['bmw', 'make', 'whining', 'sound', 'built', 'pcv', 'positive', 'crankcase', 'ventilation', 'system', 'likely', 'developed', 'issue', 'design', 'call', 'crankcase', 'pressure', 'regulated', 'engine', 'model', '…', 'https://t.co/ogt11i1nrw']
['system', 'model', 'pressure']
your this sound built positive crankcase ventilation system likely have issue design crankcase pressure regulated each engine model
bmw makes whining sound built pcv positive crankcase ventilation system likely developed issue design calls crankcase pressure regulated engine model
  [
    {"relatedness": True, "type": "facility", "explanation": "broken PCV system likely needs maintenance"},
    {"relatedness": True, "type": "design", "explanation": "issue with crankcase pressure regulation may be due to engine design flaw"},
    {"relatedness": False, "type": "none", "explanation": "This is not related to public housing or maintenance report feedback"}
    ]


    Based on the information provided in the Twitter post, it appears that the post relates to a maintenance report feedback for a public flat house. The mention of a "PCV positive crankcase ventilation system" and the phrase "likely developed issue" suggest that there may be a problem with the system that needs to be addressed. Additionally, the mention of an "engine model" suggests that the issue may be related to the design of the engine itself. Therefore, the answer to the question "Does the post relate to a maintenance report feedback to public flat house (e.g., a broken facility, an inconvenience, block number or street, requst fixing, etc.)?" is "Yes".