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

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

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