dg::= g::= [0] [] [3] [6] [8] [!] [1] [2]2= E::= 5::= P::= e::= 4::= [00] [000 t] [00 00] [-1 t] [u t] [! 0 t] [000 00] [00 t] [5 t] [61] [0[0] ][