*SUPPORT*
IN: wif lug dax gazzer wif OUT: GREEN RED RED
IN: dax gazzer wif OUT: GREEN RED
IN: zup gazzer kiki lug wif OUT: RED PURPLE BLUE
IN: kiki dax gazzer dax lug zup OUT: PURPLE BLUE GREEN GREEN
IN: zup gazzer zup OUT: PURPLE PURPLE
IN: wif OUT: RED
IN: kiki fep kiki fep wif OUT: RED BLUE BLUE
IN: wif fep dax gazzer kiki OUT: GREEN BLUE RED
IN: dax gazzer zup OUT: GREEN PURPLE
IN: zup dax OUT: PURPLE GREEN
IN: dax wif gazzer zup OUT: GREEN RED PURPLE
IN: dax fep dax lug zup OUT: PURPLE GREEN GREEN
IN: dax kiki gazzer zup lug wif OUT: RED GREEN BLUE PURPLE
IN: dax gazzer kiki lug dax OUT: GREEN GREEN BLUE

*QUERY*
IN: zup zup wif gazzer dax OUT: PURPLE PURPLE RED GREEN
IN: dax fep zup gazzer dax OUT: PURPLE GREEN GREEN
IN: zup OUT: PURPLE
IN: dax lug zup zup kiki zup OUT: PURPLE PURPLE BLUE PURPLE GREEN
IN: kiki kiki lug wif gazzer zup OUT: RED PURPLE BLUE BLUE
IN: dax gazzer dax OUT: GREEN GREEN
IN: kiki OUT: BLUE
IN: kiki gazzer zup lug zup OUT: PURPLE BLUE PURPLE
IN: wif fep zup gazzer zup OUT: PURPLE PURPLE RED
IN: wif fep zup gazzer dax OUT: PURPLE GREEN RED

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