Complex sentence: Shear legs, also known as sheers, shears, or sheer legs, are a form of two-legged lifting device, that were used by sailboats and dockyards for tasks such as lifting masts and heavier parts of the rigging on board.
Split into simpler sentences: Shear legs, also known as sheers, shears, or sheer legs, are a form of two-legged lifting device. They are commonly used by sailboats and dockyards for tasks such as lifting masts and heavier parts of the rigging on board.