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

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

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