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

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

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