The Algarve is home to several world-class tennis centers one of the most impressive is at Vale do Lobo.
One of the most impressive world-class tennis centers is at Vale do Lobo. 
mnli hypothesis: One of the most impressive world-class tennis centers is at Vale do Lobo.  premise: The Algarve is home to several world-class tennis centers one of the most impressive is at Vale do Lobo.