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

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

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