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

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

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