Complex sentence: Some pronounce it identically to Bow Fell (some 20 miles to the west); others say Bough, as in a tree branch, but the best pronunciation rhymes with Waugh (as in Evelyn) !
Split into simpler sentences: Some pronounce it identically to Bow Fell (some 20 miles to the west). The best pronunciation rhymes with Waugh (as in Evelyn)!