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

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

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