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

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

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