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

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

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