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

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

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