Utilize the input text as a context reference, choose the right relationship between Mylan and Heather Bresch from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

IPR challenges “could eliminate a lot of these patents that are frivolous, which would allow more access to affordable medicines,” Mylan Chief Executive Heather Bresch said in an interview.

Answer: chief_executive_officer