i1 : G = graph {{1,2},{1,4},{1,6},{3,2},{3,4},{3,6},{5,2},{5,4},{5,6}};
i2 : relabelBipartite G o2 = Graph{0 => {3, 4, 5}} 1 => {3, 4, 5} 2 => {3, 4, 5} 3 => {0, 1, 2} 4 => {0, 1, 2} 5 => {0, 1, 2} o2 : Graph