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

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

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