Utilize the input text as a context reference, choose the right relationship between 'Roy Hill' and 'iron ore' from the options.
Options: position held, developer, founded by, product/material produced

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.
product/material produced