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

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

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