Question: What is the nationality of the architect of the IBM Somers Office Complex?
Sentence (from "I. M. Pei"): There he spent seven years before establishing his own independent design firm I. M. Pei & Associates in 1955, which became I. M. Pei & Partners in 1966 and later in 1989 became Pei Cobb Freed & Partners.
Relevant evidence: No