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

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

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