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

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

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