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

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

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