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

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

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