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

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

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