11058
He felt the cosmological constant must have played the crucial role in the universe 's evolution from an Einsteinian steady state to its current expanding state , and most of his cosmological investigations focused on the constant 's significance and characteristics .
 person: Einsteinian
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Einsteinian