Assertion: doberman's history | /r/HasProperty | disputed by expert
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: The history of the Dobermann breed is sometimes disputed by experts; however, it's generally thought that Dobermanns were first bred in the 1880s by Karl Friedrich Louis Dobermann in Apolda, Thuringia, Germany, a tax collector who ran the Apolda dog pound.