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

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

*GRAMMAR*
kiki -> GREEN 
 wif -> PURPLE 
 fep -> YELLOW 
 dax -> BLUE 
 x1 tufa x2 -> [x2] [x1] 
 u1 zup u2 -> [u1] [u2] 
 u1 lug -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 