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Unable to answer "What kind of building is this?" for https://osm.org/way/179812734 via StreetComplete 32.1:

Passage piéton un niveau au dessus du trottoir. Permet l'accès aux commerces

Attached photo(s):
https://westnordost.de/p/44533.jpg
https://westnordost.de/p/44534.jpg