*SUPPORT*
IN: fep lug tufa OUT: YELLOW GREEN
IN: wif kiki OUT: BLUE BLUE BLUE
IN: fep tufa gazzer dax OUT: YELLOW PURPLE GREEN GREEN
IN: tufa gazzer tufa OUT: GREEN GREEN GREEN
IN: dax wif OUT: PURPLE BLUE
IN: fep gazzer dax OUT: PURPLE YELLOW YELLOW
IN: dax wif gazzer wif OUT: PURPLE BLUE BLUE BLUE
IN: dax tufa gazzer tufa OUT: PURPLE GREEN GREEN GREEN
IN: dax kiki OUT: PURPLE PURPLE PURPLE
IN: fep lug fep OUT: YELLOW YELLOW
IN: dax dax tufa gazzer fep OUT: PURPLE PURPLE YELLOW GREEN GREEN
IN: fep kiki OUT: YELLOW YELLOW YELLOW
IN: fep wif dax gazzer fep OUT: YELLOW BLUE YELLOW PURPLE PURPLE
IN: dax dax dax gazzer tufa OUT: PURPLE PURPLE GREEN PURPLE PURPLE

*QUERY*
IN: fep gazzer wif OUT: BLUE YELLOW YELLOW
IN: tufa lug dax OUT: GREEN PURPLE
IN: tufa dax lug fep OUT: GREEN PURPLE YELLOW
IN: dax gazzer tufa OUT: GREEN PURPLE PURPLE
IN: dax lug fep OUT: PURPLE YELLOW
IN: tufa kiki OUT: GREEN GREEN GREEN
IN: dax lug tufa OUT: PURPLE GREEN
IN: fep OUT: YELLOW
IN: fep gazzer tufa OUT: GREEN YELLOW YELLOW
IN: tufa OUT: GREEN

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