*SUPPORT*
IN: fep dax fep fep gazzer kiki tufa wif OUT: PINK BLUE RED GREEN RED RED
IN: wif wif tufa wif gazzer fep OUT: RED PINK PINK PINK
IN: kiki kiki gazzer dax gazzer fep OUT: RED GREEN BLUE BLUE
IN: kiki tufa dax blicket fep kiki tufa dax OUT: GREEN RED BLUE GREEN BLUE
IN: dax tufa fep OUT: RED GREEN
IN: kiki wif OUT: BLUE PINK
IN: dax dax tufa wif tufa fep OUT: RED PINK GREEN GREEN
IN: fep kiki wif tufa wif OUT: PINK RED BLUE PINK
IN: dax gazzer fep tufa kiki OUT: BLUE RED GREEN
IN: fep dax gazzer dax OUT: GREEN RED GREEN
IN: kiki tufa fep OUT: RED BLUE
IN: fep fep fep dax gazzer dax gazzer kiki OUT: BLUE GREEN RED RED RED GREEN
IN: dax fep kiki wif blicket wif blicket wif OUT: PINK PINK GREEN RED BLUE PINK
IN: wif OUT: PINK

*QUERY*
IN: dax kiki blicket kiki tufa dax tufa kiki OUT: BLUE GREEN BLUE GREEN BLUE
IN: dax OUT: GREEN
IN: kiki OUT: BLUE
IN: fep fep tufa kiki gazzer dax gazzer dax OUT: GREEN GREEN BLUE RED RED
IN: kiki wif fep dax gazzer dax tufa dax OUT: GREEN GREEN BLUE PINK RED GREEN
IN: wif gazzer fep blicket wif gazzer wif OUT: PINK PINK RED PINK
IN: fep tufa dax OUT: GREEN RED
IN: dax tufa kiki OUT: BLUE GREEN
IN: dax fep blicket fep gazzer kiki OUT: BLUE RED GREEN RED
IN: dax tufa wif OUT: PINK GREEN

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