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

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

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