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

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

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