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

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

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