input_20.txt

%vh -> qc, rr
&pb -> gf, gv, vp, qb, vr, hq, zj
%zj -> kn, pb
%mm -> dj
%gp -> cp
&dc -> ns
%qc -> gp
%dx -> fq, dj
%tg -> nl, ks
%pr -> nl
%gx -> xf
%hd -> lt, nl
%dq -> dj, jc
%ht -> jv
%bs -> pb, rd
&nl -> ks, cq, tc, xf, gx, hd, lt
&dj -> dc, fq, jz, ht, zs, jc
&rr -> gp, rv, jt, qc, sq
%vr -> qb
%jz -> dj, ht
%hq -> nx
%cf -> jg, rr
%hj -> cf, rr
%mt -> rr
%sq -> rr, vh
%jg -> rr, pd
%gf -> gv
%xv -> dj, dx
%rh -> nl, gx
broadcaster -> hd, zj, sq, jz
%jv -> dj, zs
%rd -> vs, pb
%pd -> rr, mt
&rv -> ns
&vp -> ns
%vs -> pb
%nx -> pb, bs
%zp -> mm, dj
&ns -> rx
%lt -> rh
%pf -> pr, nl
%tc -> qz
%xz -> dj, zp
%qb -> hq
%rl -> pf, nl
%fq -> xz
%kn -> pb, xn
%xf -> tg
%qz -> nl, rl
%ks -> tc
%jt -> kb
%jc -> xv
%kb -> hj, rr
%zs -> dq
%gv -> vr
&cq -> ns
%cp -> rr, jt
%xn -> pb, gf