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

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

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