Complex sentence: If the linear supply curve intersects the quantity axis PES will equal zero at the point of intersection and will increase as one moves up the curve; however, all points on the curve will have a coefficient of elasticity less than 1.
Split into simpler sentences: If the linear supply curve intersects the x axis PES will equal zero at the point of intersection and will increase as one moves up the curve. However, all points on the curve will have a coefficient of elasticity less than 1.