#LIVE: Situation at #Angmokio Station right now. Northbound trains are facing Congestion now upon entering Ang Mo Kio Station and 1 fresh train from #bishandepot has not been deployed into service yet. @ Ang Mo Kio,… https://t.co/z4f5y7sO5i
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North-East Region
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ANG MO KIO TOWN CENTRE
['#live', 'situation', '#angmokio', 'station', 'right', 'northbound', 'train', 'facing', 'congestion', 'upon', 'entering', 'ang', 'mo', 'kio', 'station', '1', 'fresh', 'train', '#bishandepot', 'deployed', 'service', 'yet', 'ang', 'mo', 'kio', '…', 'https://t.co/z4f5y7so5i']
['congestion']
#live situation #angmokio station right northbound facing congestion upon entering station fresh train from #bishandepot been into service
live situation angmokio station right northbound trains facing congestion upon entering ang mo kio station 1 fresh train bishandepot deployed service yet ang mo kio
  [
    {"relatedness": True, "type": "infrastructure", "explanation": "broken train/track/signal system"},
    {"relatedness": True, "type": "service disruption", "explanation": "train congestion due to maintenance/repair work"}
    ]

The Twitter post mentions "ang mo kio station" and "fresh train from bishan depot deployed" which suggests that there is an issue with the train system in the area. The use of the term "congestion" also implies that there is a problem with the flow of trains entering or exiting the station. Therefore, the relatedness of the post to a maintenance report feedback to public flat house is high, and the type of issue is likely to be related to the infrastructure or service disruption.