*SUPPORT*
IN: kiki OUT: RED
IN: zup dax OUT: GREEN PINK
IN: zup gazzer zup OUT: GREEN GREEN GREEN
IN: zup kiki lug zup kiki gazzer zup OUT: GREEN RED GREEN RED GREEN RED RED GREEN
IN: kiki gazzer dax OUT: RED RED PINK
IN: zup gazzer dax tufa dax OUT: PINK GREEN GREEN PINK
IN: kiki dax tufa fep tufa dax tufa dax OUT: PINK PINK YELLOW RED PINK
IN: fep zup lug fep gazzer fep tufa dax OUT: YELLOW GREEN YELLOW GREEN PINK YELLOW YELLOW YELLOW
IN: zup zup tufa fep OUT: YELLOW GREEN GREEN
IN: fep kiki gazzer fep tufa zup OUT: GREEN YELLOW RED RED YELLOW
IN: fep dax tufa zup tufa zup OUT: GREEN GREEN YELLOW PINK
IN: dax zup gazzer dax OUT: PINK GREEN GREEN PINK
IN: fep kiki gazzer kiki OUT: YELLOW RED RED RED
IN: zup gazzer dax tufa zup OUT: GREEN GREEN GREEN PINK

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

*GRAMMAR*
dax -> PINK 
 fep -> YELLOW 
 kiki -> RED 
 zup -> GREEN 
 x1 lug x2 -> [x1] [x1] [x2] 
 u1 gazzer u2 -> [u1] [u1] [u2] 
 x1 tufa u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 