[Enter DON JOHN.] DON JOHN. My lord and brother, God save you! DON PEDRO. Good den, brother. DON JOHN. If your leisure served, I would speak with you.

Referenceable objects can be useful when an object not belonging to any particular naming system needs to be bound to a naming service for ease of lookup.

a low card

An examination of the tooth shows a beautiful specimen of calcification of the dental pulp.