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

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

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