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

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

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