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

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

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