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

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

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