K N ;
K N 
K N 
K N (
K N )
K N ,
K N 
K N 
K N 
K N [*
K N +
K N -
K N *]
K N 
K N repeat
K N until
K N loop
K N on
K N exit
K N with
K N set
K N :=
K N not
K N .
K N index
K N ..
K N array
K N record
K N type
K N {
K N }
K N >
K N <
K N =
K N <=
K N >=
K N <>
K N in
K N or
K N xor
K N *
K N /
K N div
K N rem
K N and
K N :=
K N +=
K N -=
K N <<
L N LITERAL
I N IDENTIFIER
S N STRING
N N NETERM
V N VARIABLE