1723
In 1952 Henry Earle Vaughan became a supervisor in Bell Labs' Switching Research Department, leading studies on transistor, ferroelectric, and magnetic core memories in logic systems. In 1955 he was named Head of the Switching Research Department and began work on the Experimental Solid State Exchange (ESSEX), a pioneering solid-state system using pulse-code modulation and a central time-division switch. In 1958 Vaughan became Director of the Systems Research Center, and in 1962 moved to the Switching Systems Development Area. In 1968, Vaughan assumed overall responsibility for planning and developing No. 4 ESS. He died on March 9, 1978 in Pinehurst Historic District , North Caolina.
 place of death: Henry Earle Vaughan, Pinehurst Historic District
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: place of death, place of birth, education degree, education institution 
Text: {0} 
Answer:
 place of death: Henry Earle Vaughan, Pinehurst Historic District