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

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

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