creation date: Wed Dec 2 16:04:08 MET 1998

12#1 
A^3=id
B^2=id (A)
C^2=B (A^2 B)
12#2 
A^2=id
B^3=id (A)
C^2=A (A B)
12#3 
A^2=id
B^2=id (A)
C^3=id (AB A)
12#4 
A^3=id
B^2=id (A)
C^2=id (A^2 B)
12#5 
A^3=id
B^2=id (A)
C^2=id (A B)

last updated: Wed Dec 2 16:04:22 MET 1998 , Anton Betten