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

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

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