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

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

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