About 2 km (a mile) east of Wan Chai, Causeway Bay is second only to Tsim Sha Tsui as Hong Kong's place to shop.
The Causeway Bay is the largest group of shops in the world.  
mnli hypothesis: The Causeway Bay is the largest group of shops in the world.   premise: About 2 km (a mile) east of Wan Chai, Causeway Bay is second only to Tsim Sha Tsui as Hong Kong's place to shop.