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

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

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