qnli question: Of what nationality is Alumnus Eero Saarinen? sentence: Alumnus Eero Saarinen, Finnish-American architect of such notable structures as the Gateway Arch in St. Louis, Washington Dulles International Airport main terminal, Bell Labs Holmdel Complex and the CBS Building in Manhattan, designed Ingalls Rink at Yale and the newest residential colleges of Ezra Stiles and Morse.