6889
The field , originally theorized by Alan Guth , to 10 " seconds after the initial expansion can be generated , forming a universe consistent with observed spatial isotropy and homogeneity .
 person: Alan Guth
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: Alan Guth