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

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

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