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

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

*GRAMMAR*
dax -> BLUE 
 tufa -> GREEN 
 gazzer -> RED 
 kiki -> YELLOW 
 x1 wif x2 -> [x2] [x1] 
 u1 blicket u2 -> [u1] [u2] [u2] 
 x1 fep -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 