*SUPPORT*
IN: kiki dax fep OUT: PURPLE GREEN
IN: kiki kiki kiki fep dax blicket dax blicket OUT: PINK PINK GREEN GREEN GREEN PURPLE
IN: fep dax fep wif OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: blicket wif OUT: PINK PINK PINK
IN: zup wif OUT: BLUE BLUE BLUE
IN: fep dax blicket OUT: PINK PURPLE
IN: blicket fep kiki fep dax blicket OUT: PINK PINK PURPLE GREEN PURPLE
IN: fep OUT: PURPLE
IN: kiki wif OUT: GREEN GREEN GREEN
IN: zup zup dax kiki OUT: GREEN BLUE BLUE
IN: blicket kiki fep zup OUT: PINK GREEN PURPLE BLUE
IN: zup lug fep dax zup OUT: BLUE PURPLE BLUE
IN: fep dax fep OUT: PURPLE PURPLE
IN: fep kiki OUT: PURPLE GREEN

*QUERY*
IN: blicket dax kiki OUT: GREEN PINK
IN: zup OUT: BLUE
IN: kiki OUT: GREEN
IN: zup dax zup OUT: BLUE BLUE
IN: zup wif lug zup zup lug zup wif OUT: BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE
IN: fep fep dax fep OUT: PURPLE PURPLE PURPLE
IN: fep wif OUT: PURPLE PURPLE PURPLE
IN: fep dax zup OUT: BLUE PURPLE
IN: blicket OUT: PINK
IN: zup dax blicket OUT: PINK BLUE

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