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

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

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