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

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

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