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

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

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