Input (grade 11): Hong Kong International Airport is the main airport in Hong Kong. It is colloquially known as Chek Lap Kok Airport (è é è 'æ å), because it was built on the island of Chek Lap Kok by land reclamation, and also to distinguish it from its predecessor, the closed Kai Tak Airport.
Output (grade 12): Hong Kong International Airport, also known as Chek Lap Kok Airport is the airport of Hong Kong that was built at Chek Lap Kok on Lantau Island.