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

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

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