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

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

*GRAMMAR*
fep -> BLUE 
 dax -> RED 
 gazzer -> PURPLE 
 wif -> GREEN 
 u1 tufa u2 -> [u1] [u2] 
 u1 lug -> [u1] [u1] 
 x1 blicket x2 -> [x2] [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 