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

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

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