premise: Garvergården (lit. "The Tanner's House") is a half-timbered building complex from circa 1600 situated in Vestergade in Køge, Denmark. Owned by shoemakers and tanner for almost 200 years, from 1732, until the early 1920s, it bears testament to a time when Køge was a centre for shoemaking and tanning. The building fronting the street and a side wing on its rear are listed.
hypothesis: Køge, Denmark was once a center for tanning hides
reason: The context provides that it's a city known for shoemaking and tanning, the AI was confused because I added "hides" which is what is being tanned.