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

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

*GRAMMAR*
zup -> RED 
 dax -> PURPLE 
 wif -> YELLOW 
 gazzer -> BLUE 
 u1 fep u2 -> [u1] [u2] [u1] 
 x1 tufa x2 -> [x2] [x1] 
 x1 lug -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 