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

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

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