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

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

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