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

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

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