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

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

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