1 operand-1 2? IS 3? NOT 3.1 GREATER 3.1.1? THAN 3.1 > 3.1 LESS 3.1.1? THAN 3.1 < 3.1 EQUAL 3.1.1? TO 3.1 = 3 GREATER 3.1? THAN 3.2 OR EQUAL 3.3? TO 3 >= 3 LESS 3.1? THAN 3.2 OR EQUAL 3.3? TO 3 <= 4 operand-2