2221
 It was back in 1991 that Anderson and Jennifer Mather , a psychologist from the University of Lethbridge in Alberta , Canada , first decided to undertake a joint personality study of 44 smaller red octopuses at the aquarium as a way to begin to codify and systematize what they thought they had been observing . 
 Alberta, Canada; Canada, Alberta
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:
 Alberta, Canada; Canada, Alberta