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

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

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