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

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

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