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

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

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