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

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

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