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

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

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