Ann: Notice of Annual General Meeting 2012 , page-3

416,667 (25%)
Roseby value realisation of $150m (for 100%) of the project through one or a combination of sale, partnership, financing or other of all or part of the project
Less than A$75m of value realised - 0% rights
A$100m of value realised - 25% rights
A$150m of value realised - 50% rights
A$175m of value realised - 100% rights

Can anybody explain? The summary sentence has me confused. What do they have to do to realize $175m and get 100% rights? Sell 100% of Roseby for $175m?

The 'sale, partnership, financing' has me confused how they will measure the 'realisation' of value.