*SUPPORT*
IN: fep zup fep lug kiki gazzer fep OUT: GREEN GREEN GREEN GREEN PINK GREEN GREEN PINK
IN: kiki lug fep OUT: PINK GREEN
IN: kiki lug wif OUT: PINK YELLOW
IN: tufa kiki lug tufa OUT: BLUE PINK BLUE
IN: wif lug kiki OUT: YELLOW PINK
IN: tufa gazzer kiki lug fep OUT: PINK GREEN PINK GREEN BLUE BLUE
IN: kiki lug tufa OUT: PINK BLUE
IN: wif lug kiki gazzer tufa OUT: BLUE BLUE YELLOW PINK YELLOW PINK
IN: fep wif OUT: GREEN YELLOW
IN: tufa zup tufa lug kiki OUT: BLUE BLUE PINK
IN: kiki zup fep lug tufa OUT: PINK GREEN BLUE
IN: tufa OUT: BLUE
IN: wif zup wif fep OUT: YELLOW YELLOW GREEN
IN: wif tufa OUT: YELLOW BLUE

*QUERY*
IN: tufa lug tufa gazzer tufa OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: kiki zup kiki OUT: PINK PINK
IN: fep OUT: GREEN
IN: fep lug kiki OUT: GREEN PINK
IN: fep zup kiki lug wif OUT: GREEN PINK YELLOW
IN: kiki OUT: PINK
IN: wif zup tufa lug tufa OUT: YELLOW BLUE BLUE
IN: wif OUT: YELLOW
IN: kiki zup fep OUT: PINK GREEN
IN: tufa zup tufa OUT: BLUE BLUE

*GRAMMAR*
wif -> YELLOW 
 fep -> GREEN 
 tufa -> BLUE 
 kiki -> PINK 
 x1 gazzer x2 -> [x2] [x2] [x1] [x1] 
 u1 zup x1 -> [u1] [x1] 
 u1 lug u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 