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

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

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