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

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

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