The dataset is freely available, while licence policy is respected
The dataset is available under the Creative Commons Attribution-ShareAlike 2.0 (CC BY-SA) licence.

You must give appropriate credit, provide a link to the license, and indicate if changes were made.(for example, "©, 2020")

ShareALike means If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
Version from: 31.07.2020, 740 user corrections,
weekly updated, log
Data used for project:
website about the architecture of houses in Saint Petersburg.
the machine-readable open data portal of Saint-Petersburg
a collaborative project to create a free editable map of the world.
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