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

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

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