The green arrows represent causal relations and the red edges represent bidirectional irrelevance. We can see the rich causal relations among physical events presented in the CEGs.
In scale of 1-5, how much is event B responsible for event A?
Event A: the green cube moves toward to the right.
Event B: the cyan cube moved.
Causality level: 1
Event A: the red cube hit the yellow cube.
Event B: the red cube hit the red cube .
Causality level: 2
Event A: the purbple cube changes its direction from downward to right.
Event B: the blue ball bumps into the purple cube.
Causality level: 3
Event A: the cyan cylinder collides with the purple ball.
Event B: the cyan cylinder moved.
Causality level: 4
Event A: the cyan ball moved to the side.
Event B: the yellow ball came from above.
Causality level: 4
Event A: the cyan cube collides with the blue ball.
Event B: the cyan cube moved from below
Causality level: 5