What is the relationship between 'Compaq' and 'Hewlett-Packard' in the context of the input sentence.
Options: operator, owned by, owner of, headquarters location

Prior to his role as president and CEO, Booth held key positions in his over 30-year career in the technology industry, including at Computer Science Corp (CSC), Hewlett-Packard (HP) Corporation’s Americas Technology Solutions Group, Compaq Canada and Digital Equipment Corporation.
owned by