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

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

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