Cascade for [2, 2, 2, 2], [2, 2, 2, 2], [2, 5, 3]

Singularity types \(K^2\) Orders of local
fundamental groups		 Local indices Index
[2, 2, 2, 2], [2, 2, 2, 2], [2, 5, 3] 1 5, 5, 25 1, 1, 5 5
\(\downarrow\)
[2, 2, 2], [2, 2, 2, 2], [2, 4, 3] 20/19 4, 5, 19 1, 1, 19 19
\(\downarrow\)
[2, 2], [2, 2, 2, 2], [2, 3, 3] 15/13 3, 5, 13 1, 1, 13 13
\(\downarrow\)
[2], [2, 2, 2, 2], [2, 2, 3] 10/7 2, 5, 7 1, 1, 7 7
\(\downarrow\)
[2], [2, 2, 2], [2, 2, 2] 2 2, 4, 4 1, 1, 1 1