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

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

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