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

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

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