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

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

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