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

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

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