22991
 Syngenta , based in Basel , Switzerland , said farmers produced 165,000 tons of the unapproved Bt-10 strain of corn on 37,000 acres in the United States from 2001 through the end of last year , thinking that they were producing Bt-11 , its approved cousin . 
 location contains: Switzerland, Basel
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: Switzerland, Basel