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

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

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