graph intermediate { 0 [label="0, VOP = 4"] 1 [label="1, VOP = 5"] 2 [label="2, VOP = 2"] 3 [label="3, VOP = 7"] 4 [label="4, VOP = 11"] 0 -- 1 0 -- 2 0 -- 4 1 -- 2 1 -- 4 2 -- 3 3 -- 4 }