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

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

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