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

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

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