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

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

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