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

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

*GRAMMAR*
wif -> RED 
 lug -> PURPLE 
 dax -> GREEN 
 blicket -> BLUE 
 u1 fep u2 -> [u2] [u1] [u2] 
 x1 tufa -> [x1] [x1] 
 x1 zup u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 