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

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

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