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

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

*GRAMMAR*
zup -> YELLOW 
 fep -> GREEN 
 wif -> RED 
 dax -> BLUE 
 u1 blicket x1 -> [u1] [x1] 
 x1 gazzer x2 -> [x1] [x2] 
 u1 kiki u2 -> [u2] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 