25782
 At Johns Hopkins University , two sociologists , Doris Entwisle and Karl Alexander , collected a trove of data on Baltimore schoolchildren who began first grade in 1982 . 
 Baltimore, Johns Hopkins University
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 Baltimore, Johns Hopkins University