Diagram

This Diagram is one of the clue items obtained by our protagonists in In the Lair of the Pear, after Rah'ōxah destroys a wall and tears down a room in Daryl's lab.

Description
The Diagram is a parchment which seems to be some sort of instruction. It shows two scenarios, one with two symbols meeting with a straight line, and one with three meeting in a triangle. The first one is noted as wrong, while the second is noted as right.