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

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

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