The option gaussianRing(G,lVariableName=>w) changes the symbol used for intedeterminates in the regression matrix in a polynomial ring created with gaussianRing.
i1 : G = mixedGraph(digraph {{b,{c,d}},{c,{d}}},bigraph {{a,d}})
o1 = MixedGraph{Bigraph => Bigraph{a => set {d}} }
d => set {a}
Digraph => Digraph{b => set {c, d}}
c => set {d}
d => set {}
Graph => Graph{}
o1 : MixedGraph
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i2 : gens gaussianRing(G,lVariableName=>"lambda")
o2 = {lambda , lambda , lambda , p , p , p , p , p , s ,
b,d b,c c,d a,a b,b c,c d,d a,d a,a
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s , s , s , s , s , s , s , s , s }
a,b a,c a,d b,b b,c b,d c,c c,d d,d
o2 : List
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