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

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

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