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

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

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