identifier,	"rv".
quote.
keyword,	"or".
identifier,	"EBrNfN2".
quote.
numeric,	7.
keyword,	"lambda".
bquote.
identifier,	"zBA6".
bquote.
quote.
keyword,	"and".
identifier,	"M".
string,	"NkI".
lsquare.
eof.
