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

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

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