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

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

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