Another Item Problem

How Do You Combine Items? For Instance
Fragment Of Light
Fragment Of Darkness
Fragment Of Chaos
= To That Item

Any Idea? How Thankz Guyz :8

Untitled Trigger 001
Events
Unit - A unit Acquires an item
Conditions
Or - Any (Conditions) are true
Conditions
((Item being manipulated) Equal to Light Frag) and ((((Dark Frag) is owned) Equal to True) and (((Chaos Frag) is owned) Equal to True))

((Item being manipulated) Equal to Dark Frag) and ((((Light Frag) is owned) Equal to True) and (((Chaos Frag) is owned) Equal to True))

((Item being manipulated) Equal to Chaos Frag) and ((((Light Frag) is owned) Equal to True) and (((Dark Frag) is owned) Equal to True))

Actions
Blah, blah, your actions here

EDIT: Sorry :(

hmmm Damit I Can't Seeem to Do it :/