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

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

*GRAMMAR*
fep -> YELLOW 
 gazzer -> BLUE 
 zup -> RED 
 tufa -> GREEN 
 x1 lug -> [x1] [x1] 
 u1 dax u2 -> [u2] [u1] 
 x1 blicket u1 -> [x1] [u1] [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 