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

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

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