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

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

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