Insert an item into the Set

Add a line to the this Set's current comment paragraph

Succeed if item is in the Set

Succeed if the named item is in the Set

Delete an item from the Set, given that item's name

Generate a sorted (by name) sequence of the items in the Set

Get a specific item from the Set, given that item's name

Produce this Set's Comments()

Generate a sorted sequence of the names of the items in the Set

Change the Set contents

Change the comments associated with this Set

Produce the size of the Set

Start a new comment paragraph