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

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

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