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

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

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