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

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

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