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

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

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