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

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

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