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

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

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