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

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

*GRAMMAR*
zup -> PINK 
 dax -> GREEN 
 kiki -> RED 
 gazzer -> YELLOW 
 u1 blicket u2 -> [u2] [u1] 
 x1 tufa x2 -> [x2] [x1] 
 u1 lug -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 