279769
Career In 1988 , Alexander joined the Mechanical Engineering department at Washington University in St. Louis , Missouri where he taught until 2001 .
 organization: Engineering; organization: Washington University in St. Louis
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: Engineering, Washington University in St. Louis 
Answer:
 organization: Engineering; organization: Washington University in St. Louis