Utilize the input text as a context reference, choose the right relationship between Checkers and Shoprite 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.

The tickets are now on sale at Computicket and Shoprite Checkers countrywide.

Answer: parent_organization