271974
This idea was further developed by Robert Tannenbaum and Warren H. Schmidt ( 1958 , 1973 ) , who argued that the style of leadership is dependent upon the prevailing circumstance ; therefore leaders should exercise a range of management styles and should deploy them as appropriate .
 None
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:  
Answer:
 None