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

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

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