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

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

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