-- -*- M2-comint -*- hash: 6566952634692507197

i1 : QQ[a,b,c,d];

i2 : isGraph(hyperGraph {a*b,b*c,c*d})

o2 = true

i3 : isGraph(hyperGraph {a*b,b*c*d})

o3 = false

i4 : isGraph(hyperGraph {a*b,b*c,d})

o4 = false

i5 : 
