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

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

*GRAMMAR*
wif -> BLUE 
 fep -> GREEN 
 dax -> RED 
 tufa -> PINK 
 u1 zup u2 -> [u2] [u1] 
 x1 gazzer u1 -> [u1] [x1] [u1] 
 x1 lug -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 