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

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

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