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

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

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