*SUPPORT*
IN: zup OUT: GREEN
IN: kiki blicket fep OUT: BLUE YELLOW
IN: zup wif tufa OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: kiki fep fep dax blicket dax OUT: YELLOW BLUE BLUE PURPLE PURPLE
IN: fep OUT: BLUE
IN: fep blicket kiki OUT: YELLOW BLUE
IN: kiki wif OUT: YELLOW YELLOW
IN: fep blicket zup OUT: GREEN BLUE
IN: fep fep wif OUT: BLUE BLUE BLUE
IN: zup tufa OUT: GREEN GREEN GREEN
IN: dax fep wif OUT: PURPLE BLUE BLUE
IN: fep blicket zup tufa OUT: GREEN BLUE GREEN BLUE GREEN BLUE
IN: dax fep dax OUT: PURPLE BLUE PURPLE
IN: fep wif OUT: BLUE BLUE

*QUERY*
IN: fep kiki wif OUT: BLUE YELLOW YELLOW
IN: fep wif tufa OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: dax OUT: PURPLE
IN: fep dax OUT: BLUE PURPLE
IN: dax zup tufa OUT: PURPLE GREEN PURPLE GREEN PURPLE GREEN
IN: kiki OUT: YELLOW
IN: zup blicket dax OUT: PURPLE GREEN
IN: kiki tufa OUT: YELLOW YELLOW YELLOW
IN: dax wif OUT: PURPLE PURPLE
IN: kiki blicket dax OUT: PURPLE YELLOW

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