Question: Terry Swartzberg especially known for his work for the holocaust memorial project Stolpersteine, a cobblestone-size (10x10 cm ) concrete cube bearing a brass plate inscribed with the name and life dates of victims of what persecution?
Sentence (from "Stolperstein"): The "stolperstein" art project was initiated by the German artist Gunter Demnig in 1992, and is still ongoing.
Relevant evidence: No