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

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

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