In the context of the input sentence, determine the relationship between 'Saxo Bank' and 'Copenhagen'.
Options: owner of, brand, location of formation, headquarters location

Saxo Bank’s Head of Social, Philip Macartney Parts Ways With Broker Saxo Bank’s Head of Social, Philip Macartney Parts Ways With Broker Mr. Macartney has served as the Head of Social at Saxo Bank since August 2014, having worked in its Copenhagen branch Advertising Print This Post
location of formation