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

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

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