Complex sentence: Cole is classified in the S9 category in swimming due to her amputation; along with people who have lost one leg like Cole, the classification includes swimmers who have joint restrictions in one leg and those with double below-knee amputations.
Split into simpler sentences: Cole is classified in the S9 category in swimming due to her amputation. The classification also includes swimmers who have joint restrictions in one leg and those with double below-knee amputations.