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

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

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