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

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

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