Analyze the relationship between 'Axiata' and 'Robi Axiata' within the context of the input sentence.
Options: legal form, owner of, location of formation, publisher

9.25 am: Bharti Airtel , India’s largest telecom service provider, has entered into an exclusive discussion with Axiata Group Berhad (Axiata) to explore the possibility of combining the business operations of their telecommunication subsidiaries in Bangladesh; namely, Robi Axiata and Airtel Bangladesh.
owner of