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

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

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