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

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

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