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

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

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