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

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

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