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

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

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