541
The show ranked number 7 in the 1949 Nielsen ratings , number 9 in the 1950 - 1951 season and number 28 in 1951 - 1952 .
 organization: Nielsen
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: Nielsen 
Answer:
 organization: Nielsen