4048
The Krull dimension of a commutative ring is the maximal length of chains of prime ideals in it , a chain of length " n " being a sequence of prime ideals related by inclusion .
 person: Krull
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: Krull 
Answer:
 person: Krull