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

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

*GRAMMAR*
dax -> BLUE 
 lug -> PURPLE 
 fep -> GREEN 
 tufa -> RED 
 x1 zup x2 -> [x2] [x1] 
 x1 gazzer x2 -> [x1] [x2] 
 x1 wif -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 