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

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

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