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

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

*GRAMMAR*
zup -> BLUE 
 dax -> GREEN 
 wif -> RED 
 lug -> YELLOW 
 x1 gazzer x2 -> [x2] [x1] 
 u1 fep x1 -> [u1] [u1] [x1] [u1] [x1] [x1] [x1] 
 u1 tufa x1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 