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

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

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