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

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

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