36594
Dr. Melen was invited to join the research staff of the Stanford Integrated Circuits Laboratory in 1972 , and was named Associate Director of the laboratory in 1974 .
 person: Melen
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Melen 
Answer:
 person: Melen