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

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

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