Across Gloucester Road, opposite the World Trade Centre, is the Noonday Gun, which under British rule was sounded on the stroke of midday.
The Noonday Gun is the only gun fired at noon in the world.  
mnli hypothesis: The Noonday Gun is the only gun fired at noon in the world.   premise: Across Gloucester Road, opposite the World Trade Centre, is the Noonday Gun, which under British rule was sounded on the stroke of midday.