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

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

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