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

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

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