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

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

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