Utilize the input text as a context reference, choose the right relationship between prime and retail 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.

CBRE's head of Melbourne retail leasing Zelman Ainsworth said banks and telco groups are emerging as strong competitors for prime retail space across the Melbourne CBD.

Answer: industry