Simplify the following text for a Grade 5 native English-speaking person.
Original: A fan vault is a form of vault used in the Perpendicular Gothic style , in which the ribs are all of the same curve and spaced equidistantly , in a manner resembling a fan .
Simplified: A fan vault is a form of vault used in the Perpendicular Gothic style . All its ribs are of the same curve and spaced the same .