20401
 Federal health officials have been trying to increase and diversify the supply of seasonal flu vaccines to avoid a repeat of the shortage in 2004 , when Chiron 's factory in Liverpool , England , was suddenly closed by British regulators because of sanitary problems , depriving the United States of about half its expected supply . 
 location contains: England, Liverpool
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 location contains: England, Liverpool