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

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

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