What is the relationship between 'Roy Hill' and 'iron ore' in the context of the input sentence.
Options: founded by, position held, developer, 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