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

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

*GRAMMAR*
fep -> BLUE 
 lug -> GREEN 
 zup -> PURPLE 
 kiki -> RED 
 x1 wif x2 -> [x2] [x1] 
 x1 tufa u1 -> [x1] [u1] [x1] 
 x1 dax x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 