References to unparsed entities

Section 4.4.9 states:

"The following ... constitute fatal errors: the appearance of a 
reference to an unparsed entity, except in the EntityValue in an entity 
declaration."

Section 4.4.9 states:

"It is an error for a reference to an unparsed entity to appear in the 
EntityValue in an entity declaration."

Why don't these contradict each other?

Thanks,

-- Ron