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

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

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