I acknowledge and appreciate the concern of Senator Xenophon and the attention he has paid to this issue—as has Senator Ryan. I recall a significant number of discussions about this at Senate estimates. We are dealing with substituting the word 'substantially' with 'materially'. The detailed and principled approach that Senator Xenophon is proposing reflects what is known as his trade practices Richmond amendment bill. I do note we are developing a trend to name amendments in this area after geographic locations based on where proposals are drafted or communicated. But that is by the by. I am not sure which Richmond this is—I know a number of Richmonds.