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

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

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