pk1,pk2,pk3,content
a,d,w,a-d-w
a,d,x,a-d-x
a,d,y,a-d-y
a,d,z,a-d-z
a,e,a,a-e-a
a,e,b,a-e-b
a,e,c,a-e-c
a,e,d,a-e-d
a,e,e,a-e-e
a,e,f,a-e-f
a,e,g,a-e-g
a,e,h,a-e-h
a,e,i,a-e-i
a,e,j,a-e-j
a,e,k,a-e-k
a,e,l,a-e-l
a,e,m,a-e-m
a,e,n,a-e-n
a,e,o,a-e-o
a,e,p,a-e-p
a,e,q,a-e-q
a,e,r,a-e-r
a,e,s,a-e-s
a,e,t,a-e-t
a,e,u,a-e-u
a,e,v,a-e-v
a,e,w,a-e-w
a,e,x,a-e-x
a,e,y,a-e-y
a,e,z,a-e-z
a,f,a,a-f-a
a,f,b,a-f-b
a,f,c,a-f-c
a,f,d,a-f-d
a,f,e,a-f-e
a,f,f,a-f-f
a,f,g,a-f-g
a,f,h,a-f-h
a,f,i,a-f-i
a,f,j,a-f-j
a,f,k,a-f-k
a,f,l,a-f-l
a,f,m,a-f-m
a,f,n,a-f-n
a,f,o,a-f-o
a,f,p,a-f-p
a,f,q,a-f-q
a,f,r,a-f-r
a,f,s,a-f-s
a,f,t,a-f-t
a,f,u,a-f-u
a,f,v,a-f-v
a,f,w,a-f-w
a,f,x,a-f-x
a,f,y,a-f-y
a,f,z,a-f-z
a,g,a,a-g-a
a,g,b,a-g-b
a,g,c,a-g-c
a,g,d,a-g-d
a,g,e,a-g-e
a,g,f,a-g-f
a,g,g,a-g-g
a,g,h,a-g-h
a,g,i,a-g-i
a,g,j,a-g-j
a,g,k,a-g-k
a,g,l,a-g-l
a,g,m,a-g-m
a,g,n,a-g-n
a,g,o,a-g-o
a,g,p,a-g-p
a,g,q,a-g-q
a,g,r,a-g-r
a,g,s,a-g-s
a,g,t,a-g-t
a,g,u,a-g-u
a,g,v,a-g-v
a,g,w,a-g-w
a,g,x,a-g-x
a,g,y,a-g-y
a,g,z,a-g-z
a,h,a,a-h-a
a,h,b,a-h-b
a,h,c,a-h-c
a,h,d,a-h-d
a,h,e,a-h-e
a,h,f,a-h-f
a,h,g,a-h-g
a,h,h,a-h-h
a,h,i,a-h-i
a,h,j,a-h-j
a,h,k,a-h-k
a,h,l,a-h-l
a,h,m,a-h-m
a,h,n,a-h-n
a,h,o,a-h-o
a,h,p,a-h-p
a,h,q,a-h-q
a,h,r,a-h-r
a,h,s,a-h-s