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

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

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