Unable to answer "What street does the (house) number 6 belong to?" for https://osm.org/way/974912203 via StreetComplete 34.0:

The place has the name Πλατεία Δημητρίου, but this is not mapped yet. Holds for all houses here.

Attached photo(s):
https://westnordost.de/p/184682.jpg