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

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

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