Anger over horse race ad on Sydney Opera House

In my high level lessons this week my students and I studied how there is public outcry in Australia over controversial plans to use the Sydney Opera House as a "billboard" to advertise a horse race. Tens of thousands of Australians have signed a petition to block the plans to project an advertisement for the Everest Cup onto the iconic white sails of the Opera House. The race is the richest horse race in the world.