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

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

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