It looks like the same format they use for NFL Game Rewind too. I would guess that there is an official syntax and the data is provided by the NFL because if n

It looks like the same format they use for NFL Game Rewind too. I would guess that there is an official syntax and the data is provided by the NFL because if not you would have all types of formats and opinions about the game baked into each team's data. I would also guess the same office that keeps records (game, individual, all time, etc) are the ones that keep the play by play too. Overall this is neat but it's hard to find real life context within this data. Was the QB pressured, was a coverage blown, was there a pre-snap audible or motion or change by the defense, what was the formation, how much sleep did the players get the night before, etc etc.