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

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

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