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

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

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