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

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

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