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

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

*GRAMMAR*
lug -> GREEN 
 dax -> YELLOW 
 wif -> BLUE 
 tufa -> RED 
 u1 kiki u2 -> [u1] [u1] [u2] 
 u1 gazzer x1 -> [x1] [u1] 
 u1 blicket -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 