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

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

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