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

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

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