*SUPPORT*
IN: wif kiki dax OUT: YELLOW GREEN
IN: zup blicket zup blicket tufa OUT: BLUE BLUE PURPLE
IN: zup blicket zup blicket dax OUT: BLUE BLUE GREEN
IN: zup blicket wif OUT: BLUE YELLOW
IN: tufa kiki tufa OUT: PURPLE PURPLE
IN: wif dax blicket dax blicket tufa blicket dax OUT: YELLOW GREEN GREEN PURPLE GREEN
IN: tufa zup OUT: PURPLE BLUE
IN: wif wif OUT: YELLOW YELLOW
IN: wif zup blicket tufa blicket zup tufa OUT: YELLOW BLUE PURPLE BLUE PURPLE
IN: tufa kiki wif OUT: PURPLE YELLOW
IN: zup kiki zup OUT: BLUE BLUE
IN: zup blicket wif blicket zup OUT: BLUE YELLOW BLUE
IN: zup kiki dax OUT: BLUE GREEN
IN: dax kiki zup OUT: GREEN BLUE

*QUERY*
IN: zup OUT: BLUE
IN: wif OUT: YELLOW
IN: wif dax wif blicket wif dax kiki dax OUT: YELLOW GREEN YELLOW YELLOW GREEN GREEN
IN: dax kiki wif OUT: GREEN YELLOW
IN: dax OUT: GREEN
IN: wif kiki wif OUT: YELLOW YELLOW
IN: tufa dax OUT: PURPLE GREEN
IN: tufa kiki zup OUT: PURPLE BLUE
IN: tufa OUT: PURPLE
IN: tufa blicket zup OUT: PURPLE BLUE

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