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

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

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