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