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

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

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