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

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

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