*SUPPORT*
IN: wif lug dax OUT: RED RED PINK
IN: wif OUT: RED
IN: zup lug blicket OUT: BLUE BLUE GREEN
IN: zup lug dax OUT: BLUE BLUE PINK
IN: dax lug zup OUT: PINK PINK BLUE
IN: wif lug blicket OUT: RED RED GREEN
IN: zup tufa blicket OUT: BLUE GREEN
IN: wif gazzer blicket OUT: GREEN RED
IN: zup OUT: BLUE
IN: zup wif lug zup OUT: BLUE RED RED BLUE
IN: dax tufa zup OUT: PINK BLUE
IN: dax OUT: PINK
IN: zup tufa wif gazzer blicket lug dax OUT: GREEN GREEN PINK BLUE RED
IN: dax tufa blicket OUT: PINK GREEN

*QUERY*
IN: zup tufa dax OUT: BLUE PINK
IN: blicket wif lug dax OUT: GREEN RED RED PINK
IN: dax gazzer zup dax OUT: BLUE PINK PINK
IN: blicket tufa zup gazzer zup zup tufa dax OUT: BLUE BLUE PINK GREEN BLUE
IN: dax tufa dax OUT: PINK PINK
IN: blicket lug dax OUT: GREEN GREEN PINK
IN: blicket lug zup OUT: GREEN GREEN BLUE
IN: zup dax OUT: BLUE PINK
IN: blicket tufa dax OUT: GREEN PINK
IN: blicket OUT: GREEN

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