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

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

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