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

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

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