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

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

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