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

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

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