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

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

*GRAMMAR*
wif -> YELLOW 
 lug -> PURPLE 
 kiki -> RED 
 dax -> BLUE 
 u1 zup -> [u1] [u1] 
 x1 fep x2 -> [x2] [x2] [x1] [x1] 
 u1 blicket x1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 