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

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

*GRAMMAR*
wif -> RED 
 blicket -> GREEN 
 tufa -> YELLOW 
 dax -> BLUE 
 x1 kiki x2 -> [x2] [x2] [x1] 
 x1 lug x2 -> [x2] [x2] [x1] [x1] 
 u1 zup u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 