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

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

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