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

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

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