If the characteristics of the parent class change, the subclass on which it is based inherits those characteristics.
(the characteristics of the parent class change, the subclass; is based; it) (the characteristics of the parent class change, the subclass on which it is based; inherits; those characteristics)
the characteristics of the parent class change, the subclass the characteristics of the parent class change, the subclass on which it is based
is based inherits
it
those characteristics