*SUPPORT*
IN: gazzer tufa OUT: GREEN BLUE
IN: fep tufa tufa wif zup OUT: RED BLUE YELLOW BLUE YELLOW
IN: fep kiki tufa tufa tufa dax OUT: BLUE BLUE BLUE BLUE BLUE BLUE RED
IN: fep dax OUT: RED RED
IN: zup gazzer wif zup OUT: YELLOW YELLOW GREEN YELLOW
IN: fep OUT: RED
IN: zup OUT: YELLOW
IN: tufa tufa wif fep OUT: BLUE RED BLUE RED
IN: tufa kiki gazzer wif gazzer OUT: GREEN GREEN GREEN BLUE
IN: zup wif fep OUT: RED YELLOW RED
IN: tufa wif zup OUT: YELLOW BLUE YELLOW
IN: gazzer OUT: GREEN
IN: tufa wif tufa dax OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: fep tufa wif tufa OUT: RED BLUE BLUE BLUE

*QUERY*
IN: tufa OUT: BLUE
IN: zup kiki zup wif fep dax OUT: RED YELLOW RED RED YELLOW RED YELLOW
IN: tufa fep fep zup dax OUT: BLUE RED RED YELLOW BLUE RED RED YELLOW
IN: tufa wif zup dax OUT: YELLOW BLUE YELLOW YELLOW BLUE YELLOW
IN: zup zup tufa kiki fep dax OUT: RED RED YELLOW YELLOW BLUE
IN: gazzer wif tufa OUT: BLUE GREEN BLUE
IN: tufa wif gazzer dax kiki fep OUT: RED GREEN BLUE GREEN GREEN BLUE GREEN
IN: zup wif gazzer OUT: GREEN YELLOW GREEN
IN: fep wif zup OUT: YELLOW RED YELLOW
IN: fep wif tufa OUT: BLUE RED BLUE

*GRAMMAR*
zup -> YELLOW 
 fep -> RED 
 tufa -> BLUE 
 gazzer -> GREEN 
 x1 kiki x2 -> [x2] [x1] 
 x1 dax -> [x1] [x1] 
 u1 wif u2 -> [u2] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 