Utilize the input text as a context reference, choose the right relationship between Roy Hill and iron ore 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.

A dispute emerging between two parties typically triggers claims further up and down the chain as all parties seek to claw back money, with potentially scores of subcontractors involved on a project such as Gorgon, or Gina Rinehart's Roy Hill iron ore venture in WA.

Answer: product_or_material_produced