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

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

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