-- -*- M2-comint -*- hash: 1731035132693572290

i1 : Phi = inverse first graph last graph rationalMap PP_(ZZ/33331)^(1,3);

o1 : MultirationalMap (birational map from threefold in PP^3 x PP^2 to threefold in PP^3 x PP^2 x PP^2)

i2 : degreeSequence Phi

o2 = {[(1, 0)], [(0, 1), (2, 0)], [(0, 1), (2, 0)]}

o2 : List

i3 : 
