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

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

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