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

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

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