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

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

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