################################################
KEYWORD = 2000001
NUMBER  = 2000002
IDENTIFY = 2000003
OPERATOR_LE =2000004         #  <=
OPERATOR_RE = 2000005		# >=
OPERATOR_LT = 2000006       #  <
OPERATOR_R = 2000007       #  >
OPERATOR_L = 2000008       #  <<
OPERATOR_RR = 2000009       #  >>
OPERATOR_E =  2000010
