*SUPPORT*
IN: tufa gazzer wif kiki OUT: BLUE GREEN BLUE GREEN
IN: fep gazzer wif OUT: BLUE PURPLE
IN: fep zup lug OUT: PURPLE RED RED RED
IN: zup zup OUT: RED RED
IN: wif lug kiki OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: tufa gazzer fep kiki kiki OUT: PURPLE GREEN PURPLE GREEN PURPLE GREEN PURPLE GREEN
IN: wif lug OUT: BLUE BLUE BLUE
IN: wif OUT: BLUE
IN: wif tufa tufa OUT: BLUE GREEN GREEN
IN: tufa zup OUT: GREEN RED
IN: tufa zup wif OUT: GREEN RED BLUE
IN: fep lug OUT: PURPLE PURPLE PURPLE
IN: tufa lug OUT: GREEN GREEN GREEN
IN: tufa wif OUT: GREEN BLUE

*QUERY*
IN: tufa lug kiki OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: tufa gazzer zup OUT: RED GREEN
IN: wif gazzer tufa OUT: GREEN BLUE
IN: wif tufa wif gazzer fep OUT: BLUE GREEN PURPLE BLUE
IN: zup fep wif zup lug OUT: RED PURPLE BLUE RED RED RED
IN: fep OUT: PURPLE
IN: zup OUT: RED
IN: zup fep lug OUT: RED PURPLE PURPLE PURPLE
IN: tufa OUT: GREEN
IN: tufa gazzer fep OUT: PURPLE GREEN

*GRAMMAR*
fep -> PURPLE 
 tufa -> GREEN 
 wif -> BLUE 
 zup -> RED 
 u1 gazzer u2 -> [u2] [u1] 
 u1 lug -> [u1] [u1] [u1] 
 x1 kiki -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 