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

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

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