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

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

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