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

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

*GRAMMAR*
dax -> GREEN 
 tufa -> RED 
 gazzer -> YELLOW 
 wif -> BLUE 
 x1 blicket u1 -> [u1] [u1] [x1] 
 x1 kiki x2 -> [x1] [x2] [x2] 
 x1 lug x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 