graph intermediate { 0 [label="0, VOP = 7"] 1 [label="1, VOP = 8"] 2 [label="2, VOP = 6"] 3 [label="3, VOP = 10"] 4 [label="4, VOP = 11"] 0 -- 2 0 -- 4 0 -- 3 1 -- 2 1 -- 3 1 -- 4 2 -- 3 3 -- 4 }