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

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

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