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

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

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