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

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

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