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

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

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