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

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

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