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

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

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