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

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

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