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

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

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