I don't know off the top of my head. But missing tags or mistagging is a slightly different problem than tags that are difficult to parse. What's un/mistagged c

I don't know off the top of my head. But missing tags or mistagging is a slightly different problem than tags that are difficult to parse. What's un/mistagged can be corrected in a crowd-sourced way (as Google Maps is doing). What's challenging to parse continues to be so no matter how much crowd-sourcing is present. The solution is straightforward for OSM - standardize the tags. It's been a long debate in OSM, but I hope the commercial influence will make them do it. There are practically no downsides and significant benefits.