Sorry but to late i'm gonna say what i mean!
THE TRIANGLE MEANING:
The Invisble Cloak
THE CIRCLE MEANING:
The Resurrection Stone
THE LINE MEANING:
The Elder Wand
THE SYMBOL MEANING:
The Deathly Hallows
By the way the Teletubies The Purple , The Green and the Yellow one imagine it
the purple is a upside down Triangle the Green is a line and the Yellow is a Circle
Just imagine it