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

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

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