Complex sentence: Boris Johnson, Mayor of London criticised the fact that the park was chosen to be in Orlando, rather than in London, stating that it was "utterly mad" to leave it to the Americans "to make money from a great British invention".
Split into simpler sentences: Boris Johnson, Mayor of London criticised the fact that the park was chosen to be in Orlando, rather than in London. He said it was "utterly mad" to leave it to the Americans "to make money from a great British invention".