*SUPPORT*
IN: dax tufa OUT: RED RED RED
IN: dax tufa fep lug fep lug OUT: YELLOW YELLOW RED RED RED
IN: lug OUT: YELLOW
IN: kiki OUT: BLUE
IN: dax OUT: RED
IN: kiki tufa OUT: BLUE BLUE BLUE
IN: wif gazzer lug wif dax tufa OUT: PURPLE PURPLE YELLOW PURPLE RED RED RED
IN: dax fep dax OUT: RED RED
IN: dax kiki tufa fep kiki OUT: BLUE RED BLUE BLUE BLUE
IN: dax tufa gazzer wif OUT: RED RED RED RED RED RED PURPLE
IN: kiki wif tufa fep lug fep dax OUT: RED YELLOW BLUE PURPLE PURPLE PURPLE
IN: wif tufa OUT: PURPLE PURPLE PURPLE
IN: wif OUT: PURPLE
IN: kiki tufa fep dax OUT: RED BLUE BLUE BLUE

*QUERY*
IN: lug tufa fep kiki OUT: BLUE YELLOW YELLOW YELLOW
IN: kiki dax kiki tufa fep wif OUT: PURPLE BLUE RED BLUE BLUE BLUE
IN: lug gazzer kiki tufa fep dax fep lug OUT: YELLOW YELLOW YELLOW RED BLUE BLUE BLUE
IN: kiki dax OUT: BLUE RED
IN: kiki gazzer lug tufa fep wif OUT: BLUE BLUE PURPLE YELLOW YELLOW YELLOW
IN: wif lug tufa OUT: PURPLE YELLOW YELLOW YELLOW
IN: dax wif OUT: RED PURPLE
IN: dax tufa fep kiki OUT: BLUE RED RED RED
IN: kiki lug tufa fep dax OUT: RED BLUE YELLOW YELLOW YELLOW
IN: dax dax gazzer dax tufa OUT: RED RED RED RED RED RED RED

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