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

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

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