Complex sentence: It occupies an architecturally distinctive building designed by Uruguayan architect Rafael Viñoly, and was initially endowed by Thomas Watson, Jr., Brown class of 1937, former Ambassador to the Soviet Union, and longtime president of IBM.
Split into simpler sentences: It occupies an architecturally distinctive building designed by Uruguayan architect Rafael Viñoly. The Institute was initially endowed by Thomas Watson, Jr., Brown class of 1937, former Ambassador to the Soviet Union, and longtime president of IBM.