16922
 Richards finished in 49.74 seconds , followed by the 2003 world champion , Ana Guevara of Mexico , in 49.81 . 
 nationality: Ana Guevara, Mexico
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: 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} 
 Entity Pairs:  Ana Guevara, Mexico 
Answer:
 nationality: Ana Guevara, Mexico