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

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

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