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

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

*GRAMMAR*
tufa -> GREEN 
 fep -> RED 
 blicket -> BLUE 
 dax -> YELLOW 
 x1 kiki u1 -> [u1] [u1] [x1] [x1] 
 u1 gazzer x1 -> [u1] [x1] [x1] 
 x1 wif x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 