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

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

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