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

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

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