^ @Krishna_Musku beat me too it...
All events, standard and custom events come through the Raw Data feed in the events_list, and the mapping of the "backend ids" for each event can be found in the events.tsv lookup.
Those standard events would be:
1 - Purchase
2 - Product View
10 - Cart Open
11 - Checkout
12 - Cart Add
13 - Cart Remove
14 - Cart View