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

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

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