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

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

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