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

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

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