Question: What other reactor did the supervisor of construction of the reactor that went critical under the supervision of Enrico Fermi build?
Sentence (from "Walter Zinn"): He worked at the Manhattan Project's Metallurgical Laboratory during World War II, and supervised the construction of Chicago Pile-1, the world’s first nuclear reactor, which went critical on December 2, 1942, at the University of Chicago.
Relevant evidence: No