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

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

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