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

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

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