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

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

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