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

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

*GRAMMAR*
gazzer -> GREEN 
 tufa -> BLUE 
 blicket -> RED 
 kiki -> YELLOW 
 u1 fep u2 -> [u2] [u1] 
 x1 wif x2 -> [x1] [x2] 
 u1 dax u2 -> [u2] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 