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

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

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