Question: What country's embassy is located in the neighbourhood of Washington D.C. names after Rear Admiral Samuel Francis Du Pont?
Sentence (from "Dupont Circle"): Dupont Circle is a traffic circle, park, neighborhood, and historic district in Northwest Washington, D.C. The traffic circle is located at the intersection of Massachusetts Avenue NW, Connecticut Avenue NW, New Hampshire Avenue NW, P Street NW, and 19th Street NW.
Relevant evidence: No