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

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

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