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

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

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