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

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

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