Not to be too pedantic, and it probably doesn't matter as much for SI routes, but in other boros it seems like for the "operator" on other lines it's a bit more nuanced than just "MTA".
https://en.wikipedia.org/wiki/Metropolitan_Transportation_Authority#Subsidiaries_and_affiliates, especially https://en.wikipedia.org/wiki/MTA_Regional_Bus_Operations
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            Published using OSMCha: https://osmcha.org/changesets/149616848
            