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

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

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