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

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

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