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

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

*GRAMMAR*
zup -> RED 
 kiki -> PINK 
 tufa -> GREEN 
 fep -> BLUE 
 x1 dax -> [x1] [x1] [x1] 
 u1 lug u2 -> [u1] [u2] 
 x1 wif x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 