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

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

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