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

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

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