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

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

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