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

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

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