[OPWS] 10-12 Biggs 3 groups joining while Northwestbound (Rachel Rodell and Amelia Kalagher) 
(IDs: T59, T60s, T109As)
{"aggregatorChain": "Whale Alert / Maplify (WASEAK) > Whale Alert", "travelDirection": "northwest", "aggregatorSource": "Whale Alert", "unvalidatedIdentifiers": ["T59", "T60s", "T109As"]}