i1 : R = makeCharacterRing 4
o1 = R
o1 : PolynomialRing

i2 : X = makeGKMVariety({set{0},set{1},set{2},set{3}},R)
o2 = a "GKM variety" with an action of a 4dimensional torus
o2 : GKMVariety

i3 : X.?momentGraph
o3 = false

i4 : PP3 = projectiveSpace 3
o4 = a "GKM variety" with an action of a 4dimensional torus
o4 : GKMVariety

i5 : G = momentGraph PP3
o5 = a "moment graph" on 4 vertices with 6 edges
o5 : MomentGraph

i6 : momentGraph(X,G)

i7 : X.?momentGraph
o7 = true

i8 : momentGraph X
o8 = a "moment graph" on 4 vertices with 6 edges
o8 : MomentGraph

i9 : momentGraph(X,G)
warning: overwriting a previously defined moment graph on this GKM variety
