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

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

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