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

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

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