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

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

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