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

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

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