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

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

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