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

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

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