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

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

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