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

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

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