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

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

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