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

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

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