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

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

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