# PARI Group Labelling

I have a Galois group that I'm tying to determine:

```
f = x^5 - 792*x^4 + 71280*x^3 + 39517632*x^2 - 7519640832*x + 314605513728
d = 3
A = -9504*d^2
B = 365904*d^3
K.<a> = NumberField(f)
R.<y> = K[]
g = y^2 - a^3 - A*a - B
L.<z> = NumberField(y^2 - a^3-A*a-B)
G = L.galois_group()
```

I have a couple of issues: When I type `G[1]`

, it says

```
GaloisGroup_v1 is not subscriptable
```

The second is the output for `G`

says

```
[10,-1,1,'C(10)=5[x]2']
```

I know this is the PARI label and the last entry is the GAP 4 label. But for the life of me I cannot find anywhere where it explicitly tells me what `C(10)=5[x]2`

means.