Complex sentence: Shunichi Matsumoto (b.1897-d.1988) was the first Japanese Ambassador to the United Kingdom following the reestablishing of diplomatic relations after the Second World War, serving in that position in 1952-1955.
Split into simpler sentences: Shunichi Matsumoto (b.1897-d.1988) was a Japanese diplomat. He was the first Japanese Ambassador to the United Kingdom following the reestablishing of diplomatic relations after the Second World War, serving in that position in 1952-1955.